./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91 --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 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:14:40,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:14:40,922 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:14:40,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:14:40,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:14:40,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:14:40,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:14:40,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:14:40,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:14:40,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:14:40,982 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:14:40,983 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:14:40,983 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:14:40,985 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:14:40,986 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:14:40,986 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:14:40,987 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:14:40,987 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:14:40,988 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:14:40,988 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:14:40,989 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:14:40,990 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:14:40,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:14:40,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:14:40,992 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:14:40,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:14:40,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:14:40,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:14:40,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:14:40,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:14:40,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:14:40,996 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:14:40,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:14:40,997 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:14:40,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:14:40,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:14:40,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:14:40,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:14:40,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:14:40,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:14:40,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:14:40,999 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:14:41,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:14:41,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:14:41,001 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:14:41,002 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:14:41,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:14:41,002 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_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 [2023-11-24 23:14:41,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:14:41,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:14:41,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:14:41,374 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:14:41,374 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:14:41,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-24 23:14:44,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:14:44,799 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:14:44,800 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-24 23:14:44,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/data/e8926dfa8/d7aeb04484b84bcab790508ff9e43743/FLAGde1439501 [2023-11-24 23:14:44,847 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/data/e8926dfa8/d7aeb04484b84bcab790508ff9e43743 [2023-11-24 23:14:44,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:14:44,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:14:44,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:14:44,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:14:44,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:14:44,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:14:44" (1/1) ... [2023-11-24 23:14:44,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143cbd05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:44, skipping insertion in model container [2023-11-24 23:14:44,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:14:44" (1/1) ... [2023-11-24 23:14:44,896 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:14:45,061 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_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-24 23:14:45,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:14:45,141 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:14:45,155 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_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-24 23:14:45,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:14:45,223 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:14:45,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45 WrapperNode [2023-11-24 23:14:45,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:14:45,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:14:45,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:14:45,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:14:45,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,301 INFO L138 Inliner]: procedures = 29, calls = 159, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 438 [2023-11-24 23:14:45,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:14:45,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:14:45,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:14:45,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:14:45,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:14:45,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:14:45,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:14:45,396 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:14:45,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (1/1) ... [2023-11-24 23:14:45,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:14:45,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:14:45,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:14:45,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:14:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:14:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:14:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:14:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:14:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:14:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-24 23:14:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:14:45,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:14:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:14:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:14:45,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:14:45,668 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:14:45,671 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:14:46,340 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:14:46,938 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:14:46,939 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:14:46,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:14:46 BoogieIcfgContainer [2023-11-24 23:14:46,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:14:46,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:14:46,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:14:46,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:14:46,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:14:44" (1/3) ... [2023-11-24 23:14:46,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504ad433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:14:46, skipping insertion in model container [2023-11-24 23:14:46,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:45" (2/3) ... [2023-11-24 23:14:46,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504ad433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:14:46, skipping insertion in model container [2023-11-24 23:14:46,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:14:46" (3/3) ... [2023-11-24 23:14:46,951 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-26.i [2023-11-24 23:14:46,975 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:14:46,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:14:47,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:14:47,038 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;@336fd64a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:14:47,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:14:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:14:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-24 23:14:47,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:47,052 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:47,053 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:47,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:47,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1580038406, now seen corresponding path program 1 times [2023-11-24 23:14:47,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:14:47,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865206703] [2023-11-24 23:14:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:47,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:14:47,400 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:14:47,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501315582] [2023-11-24 23:14:47,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:47,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:14:47,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:14:47,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:14:47,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:14:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:14:48,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:14:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:14:58,098 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:14:58,101 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:14:58,102 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:14:58,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:14:58,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:14:58,321 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:14:58,326 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:14:58,424 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-24 23:14:58,428 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-24 23:14:58,437 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-24 23:14:58,439 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-24 23:14:58,440 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-24 23:14:58,444 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-11-24 23:14:58,444 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-24 23:14:58,445 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-24 23:14:58,445 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-24 23:14:58,445 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-24 23:14:58,445 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-24 23:14:58,447 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-24 23:14:58,447 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-11-24 23:14:58,447 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-24 23:14:58,451 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-24 23:14:58,451 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-24 23:14:58,451 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-24 23:14:58,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-24 23:14:58,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-11-24 23:14:58,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-24 23:14:58,453 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-11-24 23:14:58,453 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-24 23:14:58,453 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-11-24 23:14:58,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-24 23:14:58,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-24 23:14:58,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-11-24 23:14:58,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-24 23:14:58,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-11-24 23:14:58,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-11-24 23:14:58,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-24 23:14:58,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-24 23:14:58,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-24 23:14:58,465 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-24 23:14:58,466 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-24 23:14:58,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-24 23:14:58,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-24 23:14:58,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-24 23:14:58,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-24 23:14:58,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-24 23:14:58,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-24 23:14:58,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-24 23:14:58,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-24 23:14:58,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:14:58 BoogieIcfgContainer [2023-11-24 23:14:58,514 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:14:58,515 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:14:58,515 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:14:58,515 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:14:58,516 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:14:46" (3/4) ... [2023-11-24 23:14:58,518 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:14:58,519 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:14:58,521 INFO L158 Benchmark]: Toolchain (without parser) took 13664.63ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 94.2MB in the beginning and 113.0MB in the end (delta: -18.8MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-24 23:14:58,521 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 132.1MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:14:58,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.71ms. Allocated memory is still 132.1MB. Free memory was 94.2MB in the beginning and 79.6MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:14:58,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.23ms. Allocated memory is still 132.1MB. Free memory was 79.6MB in the beginning and 75.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:14:58,529 INFO L158 Benchmark]: Boogie Preprocessor took 91.86ms. Allocated memory is still 132.1MB. Free memory was 75.4MB in the beginning and 72.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:14:58,531 INFO L158 Benchmark]: RCFGBuilder took 1545.87ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 72.9MB in the beginning and 109.8MB in the end (delta: -36.9MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2023-11-24 23:14:58,533 INFO L158 Benchmark]: TraceAbstraction took 11571.18ms. Allocated memory is still 172.0MB. Free memory was 108.8MB in the beginning and 113.0MB in the end (delta: -4.2MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-24 23:14:58,533 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 172.0MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:14:58,541 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 132.1MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.71ms. Allocated memory is still 132.1MB. Free memory was 94.2MB in the beginning and 79.6MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.23ms. Allocated memory is still 132.1MB. Free memory was 79.6MB in the beginning and 75.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.86ms. Allocated memory is still 132.1MB. Free memory was 75.4MB in the beginning and 72.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1545.87ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 72.9MB in the beginning and 109.8MB in the end (delta: -36.9MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11571.18ms. Allocated memory is still 172.0MB. Free memory was 108.8MB in the beginning and 113.0MB in the end (delta: -4.2MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 172.0MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 51, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -1; [L23] signed short int* var_1_1_Pointer = &(var_1_1); [L24] signed short int var_1_4 = 1; [L25] signed short int* var_1_4_Pointer = &(var_1_4); [L26] float var_1_12 = 1.125; [L27] float* var_1_12_Pointer = &(var_1_12); [L28] float var_1_13 = 199.5; [L29] float* var_1_13_Pointer = &(var_1_13); [L30] float var_1_14 = 100000000000000.3; [L31] float* var_1_14_Pointer = &(var_1_14); [L32] unsigned char var_1_15 = 64; [L33] unsigned char* var_1_15_Pointer = &(var_1_15); [L34] unsigned char var_1_16 = 2; [L35] unsigned char* var_1_16_Pointer = &(var_1_16); [L36] unsigned long int var_1_17 = 50; [L37] unsigned long int* var_1_17_Pointer = &(var_1_17); [L38] signed long int var_1_19 = -32; [L39] signed long int* var_1_19_Pointer = &(var_1_19); [L40] float var_1_20 = 8.75; [L41] float* var_1_20_Pointer = &(var_1_20); [L42] unsigned char last_1_var_1_15 = 64; [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L78] EXPR \read(var_1_15) [L78] last_1_var_1_15 = var_1_15 [L88] RET updateLastVariables() [L89] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_short() [L63] EXPR \read(var_1_4) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L63] CALL assume_abort_if_not(var_1_4 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_4 >= -32767) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L64] EXPR \read(var_1_4) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L64] CALL assume_abort_if_not(var_1_4 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 <= 32766) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L65] var_1_13 = __VERIFIER_nondet_float() [L66] EXPR \read(var_1_13) [L66] EXPR var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F [L66] EXPR \read(var_1_13) [L66] EXPR var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F [L66] EXPR (var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L66] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L67] var_1_14 = __VERIFIER_nondet_float() [L68] EXPR \read(var_1_14) [L68] EXPR var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F [L68] EXPR \read(var_1_14) [L68] EXPR var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F [L68] EXPR (var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L68] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L69] var_1_16 = __VERIFIER_nondet_uchar() [L70] EXPR \read(var_1_16) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L70] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L71] EXPR \read(var_1_16) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L71] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L72] var_1_19 = __VERIFIER_nondet_long() [L73] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L73] CALL assume_abort_if_not(var_1_19 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_19 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L74] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L74] CALL assume_abort_if_not(var_1_19 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_19 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L75] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L75] CALL assume_abort_if_not(var_1_19 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_19 != 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L89] RET updateVariables() [L90] CALL step() [L46] EXPR \read(*var_1_13_Pointer) [L46] EXPR \read(*var_1_14_Pointer) [L46] (*(var_1_12_Pointer)) = ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer))) [L47] EXPR \read(*var_1_4_Pointer) [L47] COND FALSE !((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) [L50] EXPR \read(*var_1_13_Pointer) [L50] (*(var_1_20_Pointer)) = (*(var_1_13_Pointer)) [L51] EXPR \read(*var_1_20_Pointer) [L51] EXPR \read(*var_1_20_Pointer) [L51] COND TRUE (*(var_1_20_Pointer)) > (*(var_1_20_Pointer)) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L52] (*(var_1_1_Pointer)) = (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))) [L56] EXPR \read(*var_1_15_Pointer) [L56] EXPR \read(*var_1_15_Pointer) [L56] EXPR \read(*var_1_1_Pointer) [L56] signed long int stepLocal_0 = (*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer))); [L57] EXPR \read(*var_1_15_Pointer) [L57] EXPR \read(*var_1_1_Pointer) [L57] EXPR \read(*var_1_19_Pointer) [L57] COND FALSE !(stepLocal_0 != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) [L90] RET step() [L91] CALL, EXPR property() [L81] EXPR \read(*var_1_20_Pointer) [L81] EXPR \read(*var_1_20_Pointer) [L81] EXPR ((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))))))) [L81] EXPR \read(*var_1_1_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR ((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR ((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) [L81] EXPR ((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))))))) [L81] EXPR (((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer))))) [L81] EXPR ((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1) [L81] EXPR (((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1) [L81] EXPR ((((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1)) && ((*(var_1_20_Pointer)) == ((float) (*(var_1_13_Pointer)))) [L81-L82] return ((((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1)) && ((*(var_1_20_Pointer)) == ((float) (*(var_1_13_Pointer)))) ; [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 1, TraceHistogramMax: 9, 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=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 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 [2023-11-24 23:14:58,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91 --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 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:15:01,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:15:01,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:15:01,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:15:01,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:15:01,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:15:01,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:15:01,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:15:01,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:15:01,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:15:01,293 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:15:01,294 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:15:01,295 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:15:01,295 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:15:01,296 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:15:01,296 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:15:01,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:15:01,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:15:01,298 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:15:01,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:15:01,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:15:01,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:15:01,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:15:01,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:15:01,300 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:15:01,301 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:15:01,301 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:15:01,302 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:15:01,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:15:01,302 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:15:01,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:15:01,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:15:01,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:15:01,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:15:01,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:01,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:15:01,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:15:01,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:15:01,305 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:15:01,305 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:15:01,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:15:01,306 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:15:01,306 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:15:01,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:15:01,306 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_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 [2023-11-24 23:15:01,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:15:01,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:15:01,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:15:01,762 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:15:01,762 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:15:01,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-24 23:15:04,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:15:05,282 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:15:05,283 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-24 23:15:05,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/data/7643ef7d9/217c9997dc9543a9bfea9a4f645b84b0/FLAGaae25f258 [2023-11-24 23:15:05,309 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/data/7643ef7d9/217c9997dc9543a9bfea9a4f645b84b0 [2023-11-24 23:15:05,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:15:05,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:15:05,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:05,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:15:05,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:15:05,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8b658a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05, skipping insertion in model container [2023-11-24 23:15:05,323 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,356 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:15:05,520 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_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-24 23:15:05,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:05,596 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:15:05,610 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_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-24 23:15:05,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:05,668 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:15:05,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05 WrapperNode [2023-11-24 23:15:05,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:05,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:05,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:15:05,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:15:05,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,761 INFO L138 Inliner]: procedures = 36, calls = 159, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 436 [2023-11-24 23:15:05,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:05,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:15:05,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:15:05,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:15:05,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:15:05,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:15:05,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:15:05,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:15:05,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (1/1) ... [2023-11-24 23:15:05,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:05,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:15:05,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:15:05,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:15:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:15:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:15:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-24 23:15:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:15:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-24 23:15:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-24 23:15:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:15:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-24 23:15:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 23:15:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-24 23:15:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:15:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:15:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:15:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:15:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-24 23:15:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-24 23:15:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:15:06,068 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:15:06,070 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:15:07,947 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:15:08,040 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:15:08,040 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:15:08,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:08 BoogieIcfgContainer [2023-11-24 23:15:08,041 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:15:08,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:15:08,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:15:08,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:15:08,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:15:05" (1/3) ... [2023-11-24 23:15:08,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ca954e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:08, skipping insertion in model container [2023-11-24 23:15:08,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:05" (2/3) ... [2023-11-24 23:15:08,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ca954e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:08, skipping insertion in model container [2023-11-24 23:15:08,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:08" (3/3) ... [2023-11-24 23:15:08,057 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-26.i [2023-11-24 23:15:08,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:15:08,090 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:15:08,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:15:08,157 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;@32e23727, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:15:08,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:15:08,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:08,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-24 23:15:08,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:08,192 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:08,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:08,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:08,200 INFO L85 PathProgramCache]: Analyzing trace with hash 761162639, now seen corresponding path program 1 times [2023-11-24 23:15:08,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:08,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570797437] [2023-11-24 23:15:08,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:08,232 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 [2023-11-24 23:15:08,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:08,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:08,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:08,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:15:08,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:08,818 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-24 23:15:08,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:08,819 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:08,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570797437] [2023-11-24 23:15:08,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570797437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:08,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:08,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:15:08,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133294616] [2023-11-24 23:15:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:08,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:15:08,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:08,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:15:08,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:15:08,861 INFO L87 Difference]: Start difference. First operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:15:09,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:09,351 INFO L93 Difference]: Finished difference Result 169 states and 261 transitions. [2023-11-24 23:15:09,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:15:09,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-24 23:15:09,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:09,363 INFO L225 Difference]: With dead ends: 169 [2023-11-24 23:15:09,363 INFO L226 Difference]: Without dead ends: 84 [2023-11-24 23:15:09,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:15:09,371 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:09,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:15:09,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-24 23:15:09,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-24 23:15:09,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 73 states have internal predecessors, (104), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:09,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 122 transitions. [2023-11-24 23:15:09,420 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 122 transitions. Word has length 84 [2023-11-24 23:15:09,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:09,420 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 122 transitions. [2023-11-24 23:15:09,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:15:09,421 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 122 transitions. [2023-11-24 23:15:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-24 23:15:09,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:09,426 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:09,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:09,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:09,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:09,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:09,637 INFO L85 PathProgramCache]: Analyzing trace with hash -67682943, now seen corresponding path program 1 times [2023-11-24 23:15:09,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:09,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090014452] [2023-11-24 23:15:09,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:09,639 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 [2023-11-24 23:15:09,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:09,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:09,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:10,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:15:10,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-24 23:15:10,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:10,176 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:10,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090014452] [2023-11-24 23:15:10,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090014452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:10,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:10,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:15:10,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146390090] [2023-11-24 23:15:10,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:10,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:15:10,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:10,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:15:10,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:15:10,181 INFO L87 Difference]: Start difference. First operand 84 states and 122 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:15:10,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:10,649 INFO L93 Difference]: Finished difference Result 173 states and 252 transitions. [2023-11-24 23:15:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:15:10,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-24 23:15:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:10,652 INFO L225 Difference]: With dead ends: 173 [2023-11-24 23:15:10,653 INFO L226 Difference]: Without dead ends: 90 [2023-11-24 23:15:10,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:15:10,655 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 10 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:10,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 346 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:15:10,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-24 23:15:10,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2023-11-24 23:15:10,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 75 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-11-24 23:15:10,673 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 84 [2023-11-24 23:15:10,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:10,674 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-11-24 23:15:10,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:15:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-11-24 23:15:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-24 23:15:10,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:10,678 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:10,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:10,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:10,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:10,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:10,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1976140733, now seen corresponding path program 1 times [2023-11-24 23:15:10,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:10,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589790071] [2023-11-24 23:15:10,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:10,901 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 [2023-11-24 23:15:10,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:10,930 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:10,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 23:15:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:11,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:15:11,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:11,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 23:15:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:15:11,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:11,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:11,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589790071] [2023-11-24 23:15:11,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589790071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:11,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:11,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:11,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464464855] [2023-11-24 23:15:11,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:11,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:11,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:11,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:11,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:11,538 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:11,991 INFO L93 Difference]: Finished difference Result 171 states and 247 transitions. [2023-11-24 23:15:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:11,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-24 23:15:11,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:11,994 INFO L225 Difference]: With dead ends: 171 [2023-11-24 23:15:11,994 INFO L226 Difference]: Without dead ends: 86 [2023-11-24 23:15:11,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:11,997 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:11,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 229 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:15:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-24 23:15:12,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-24 23:15:12,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:12,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 123 transitions. [2023-11-24 23:15:12,009 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 123 transitions. Word has length 84 [2023-11-24 23:15:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:12,010 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 123 transitions. [2023-11-24 23:15:12,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 123 transitions. [2023-11-24 23:15:12,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-24 23:15:12,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:12,014 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:12,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:12,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:12,224 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:12,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:12,225 INFO L85 PathProgramCache]: Analyzing trace with hash 629882821, now seen corresponding path program 1 times [2023-11-24 23:15:12,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:12,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926816870] [2023-11-24 23:15:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:12,226 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 [2023-11-24 23:15:12,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:12,228 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:12,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:12,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:15:12,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:12,695 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:15:12,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:12,695 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:12,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926816870] [2023-11-24 23:15:12,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926816870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:12,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:12,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:15:12,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419785090] [2023-11-24 23:15:12,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:12,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:15:12,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:12,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:15:12,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:15:12,699 INFO L87 Difference]: Start difference. First operand 86 states and 123 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:13,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:13,183 INFO L93 Difference]: Finished difference Result 180 states and 257 transitions. [2023-11-24 23:15:13,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:15:13,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-24 23:15:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:13,186 INFO L225 Difference]: With dead ends: 180 [2023-11-24 23:15:13,187 INFO L226 Difference]: Without dead ends: 95 [2023-11-24 23:15:13,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:15:13,189 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 10 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:13,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 444 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:15:13,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-24 23:15:13,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2023-11-24 23:15:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2023-11-24 23:15:13,201 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 84 [2023-11-24 23:15:13,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:13,202 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2023-11-24 23:15:13,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:13,203 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2023-11-24 23:15:13,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-24 23:15:13,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:13,205 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:13,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:13,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:13,415 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:13,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:13,416 INFO L85 PathProgramCache]: Analyzing trace with hash 629942403, now seen corresponding path program 1 times [2023-11-24 23:15:13,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:13,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54319232] [2023-11-24 23:15:13,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:13,417 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 [2023-11-24 23:15:13,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:13,418 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:13,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-24 23:15:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:13,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:15:14,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:14,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2023-11-24 23:15:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-24 23:15:14,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:14,185 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:14,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54319232] [2023-11-24 23:15:14,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54319232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:14,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:14,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:15:14,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549507744] [2023-11-24 23:15:14,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:14,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:15:14,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:14,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:15:14,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:15:14,216 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:15:15,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:15,484 INFO L93 Difference]: Finished difference Result 183 states and 259 transitions. [2023-11-24 23:15:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:15:15,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-24 23:15:15,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:15,487 INFO L225 Difference]: With dead ends: 183 [2023-11-24 23:15:15,487 INFO L226 Difference]: Without dead ends: 94 [2023-11-24 23:15:15,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:15:15,489 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 129 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:15,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 346 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-24 23:15:15,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-24 23:15:15,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2023-11-24 23:15:15,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 77 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:15,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2023-11-24 23:15:15,500 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 84 [2023-11-24 23:15:15,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:15,500 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2023-11-24 23:15:15,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:15:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2023-11-24 23:15:15,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-24 23:15:15,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:15,503 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:15,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:15,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:15,713 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:15,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:15,714 INFO L85 PathProgramCache]: Analyzing trace with hash -198303173, now seen corresponding path program 1 times [2023-11-24 23:15:15,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:15,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546673546] [2023-11-24 23:15:15,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:15,714 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 [2023-11-24 23:15:15,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:15,716 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:15,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-24 23:15:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:16,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 23:15:16,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:16,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-24 23:15:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:15:16,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:15:16,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:15:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 23:15:16,607 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:16,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546673546] [2023-11-24 23:15:16,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546673546] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:15:16,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [996455599] [2023-11-24 23:15:16,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:16,608 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:15:16,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:15:16,611 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:15:16,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 23:15:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:17,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:15:17,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:17,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:15:18,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-24 23:15:18,226 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:15:18,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:15:18,687 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 23:15:18,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [996455599] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:15:18,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785413937] [2023-11-24 23:15:18,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:18,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:15:18,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:15:18,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:15:18,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-24 23:15:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:19,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:15:19,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:19,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-11-24 23:15:19,145 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:15:19,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:19,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785413937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:19,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-24 23:15:19,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-11-24 23:15:19,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21468252] [2023-11-24 23:15:19,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:19,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:19,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:19,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:19,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:15:19,148 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:19,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:19,637 INFO L93 Difference]: Finished difference Result 173 states and 245 transitions. [2023-11-24 23:15:19,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:19,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2023-11-24 23:15:19,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:19,639 INFO L225 Difference]: With dead ends: 173 [2023-11-24 23:15:19,639 INFO L226 Difference]: Without dead ends: 86 [2023-11-24 23:15:19,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:15:19,641 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:19,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 23:15:19,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-24 23:15:19,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-24 23:15:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:19,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2023-11-24 23:15:19,650 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 86 [2023-11-24 23:15:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:19,651 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2023-11-24 23:15:19,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:19,652 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2023-11-24 23:15:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-24 23:15:19,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:19,654 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:19,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:19,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:20,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:20,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:20,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:20,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1917060794, now seen corresponding path program 1 times [2023-11-24 23:15:20,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:20,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655826645] [2023-11-24 23:15:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:20,279 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 [2023-11-24 23:15:20,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:20,280 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:20,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-24 23:15:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:20,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:15:20,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:20,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 23:15:20,757 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:15:20,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:20,757 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:20,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655826645] [2023-11-24 23:15:20,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655826645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:20,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:20,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:20,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733140189] [2023-11-24 23:15:20,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:20,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:20,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:20,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:20,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:20,764 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:21,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:21,302 INFO L93 Difference]: Finished difference Result 171 states and 241 transitions. [2023-11-24 23:15:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:21,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-11-24 23:15:21,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:21,304 INFO L225 Difference]: With dead ends: 171 [2023-11-24 23:15:21,304 INFO L226 Difference]: Without dead ends: 86 [2023-11-24 23:15:21,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:21,306 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 12 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:21,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 208 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 23:15:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-24 23:15:21,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-24 23:15:21,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.36) internal successors, (102), 75 states have internal predecessors, (102), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:21,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2023-11-24 23:15:21,315 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 120 transitions. Word has length 91 [2023-11-24 23:15:21,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:21,315 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 120 transitions. [2023-11-24 23:15:21,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 120 transitions. [2023-11-24 23:15:21,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-24 23:15:21,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:21,317 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:21,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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)] Ended with exit code 0 [2023-11-24 23:15:21,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:21,527 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:21,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:21,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2051074300, now seen corresponding path program 1 times [2023-11-24 23:15:21,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:21,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243357161] [2023-11-24 23:15:21,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:21,529 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 [2023-11-24 23:15:21,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:21,530 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:21,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:22,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 23:15:22,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:22,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-24 23:15:22,262 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:15:22,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:15:22,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:15:22,519 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 23:15:22,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:22,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243357161] [2023-11-24 23:15:22,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243357161] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:15:22,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [431216497] [2023-11-24 23:15:22,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:22,520 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:15:22,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:15:22,526 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:15:22,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-24 23:15:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:23,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:15:23,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:23,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:15:24,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-24 23:15:24,254 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:15:24,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:15:24,689 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 23:15:24,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [431216497] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:15:24,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791102330] [2023-11-24 23:15:24,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:24,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:15:24,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:15:24,692 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:15:24,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-24 23:15:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:25,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:15:25,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:25,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 23:15:25,191 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:15:25,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:25,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791102330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:25,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-24 23:15:25,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-11-24 23:15:25,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504716665] [2023-11-24 23:15:25,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:25,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:25,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:25,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:25,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:15:25,195 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:25,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:25,642 INFO L93 Difference]: Finished difference Result 172 states and 240 transitions. [2023-11-24 23:15:25,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:25,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-11-24 23:15:25,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:25,644 INFO L225 Difference]: With dead ends: 172 [2023-11-24 23:15:25,645 INFO L226 Difference]: Without dead ends: 87 [2023-11-24 23:15:25,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:15:25,646 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 2 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:25,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 216 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:15:25,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-24 23:15:25,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2023-11-24 23:15:25,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:25,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2023-11-24 23:15:25,654 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 91 [2023-11-24 23:15:25,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:25,655 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2023-11-24 23:15:25,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2023-11-24 23:15:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-24 23:15:25,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:25,657 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:25,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:25,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:26,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:26,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt [2023-11-24 23:15:26,262 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:26,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:26,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1426244546, now seen corresponding path program 1 times [2023-11-24 23:15:26,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:26,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465994202] [2023-11-24 23:15:26,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:26,263 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 [2023-11-24 23:15:26,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:26,264 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:26,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:26,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 23:15:26,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:26,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-24 23:15:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:15:26,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:15:27,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:15:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 23:15:27,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:27,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465994202] [2023-11-24 23:15:27,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465994202] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:15:27,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1981399582] [2023-11-24 23:15:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:27,140 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:15:27,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:15:27,145 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:15:27,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-24 23:15:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:28,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-24 23:15:28,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:28,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-24 23:15:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:15:28,837 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:15:29,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-11-24 23:15:29,252 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 23:15:29,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1981399582] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:15:29,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195966904] [2023-11-24 23:15:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:29,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:15:29,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:15:29,258 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:15:29,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-24 23:15:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:29,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:15:29,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:29,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 23:15:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:15:29,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:29,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195966904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:29,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-24 23:15:29,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-11-24 23:15:29,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665968954] [2023-11-24 23:15:29,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:29,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:29,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:29,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:29,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:15:29,789 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:30,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:30,439 INFO L93 Difference]: Finished difference Result 171 states and 237 transitions. [2023-11-24 23:15:30,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:30,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-11-24 23:15:30,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:30,442 INFO L225 Difference]: With dead ends: 171 [2023-11-24 23:15:30,442 INFO L226 Difference]: Without dead ends: 86 [2023-11-24 23:15:30,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:15:30,444 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 8 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:30,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 208 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 23:15:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-24 23:15:30,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-24 23:15:30,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3333333333333333) internal successors, (100), 75 states have internal predecessors, (100), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-11-24 23:15:30,452 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 91 [2023-11-24 23:15:30,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:30,453 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-11-24 23:15:30,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:15:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-11-24 23:15:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-24 23:15:30,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:30,455 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:30,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:30,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:30,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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)] Ended with exit code 0 [2023-11-24 23:15:31,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:31,075 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:31,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1645099264, now seen corresponding path program 1 times [2023-11-24 23:15:31,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:31,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766048386] [2023-11-24 23:15:31,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:31,076 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 [2023-11-24 23:15:31,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:31,077 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:31,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 (17)] Waiting until timeout for monitored process [2023-11-24 23:15:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:31,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 23:15:31,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:31,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-24 23:15:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:15:31,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:15:31,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:15:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 23:15:31,928 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:31,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766048386] [2023-11-24 23:15:31,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766048386] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:15:31,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1789650517] [2023-11-24 23:15:31,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:31,929 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:15:31,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:15:31,930 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:15:31,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-24 23:15:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:33,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:15:33,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:33,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:15:33,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-24 23:15:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:15:33,459 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:15:33,940 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 23:15:33,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1789650517] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:15:33,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554449287] [2023-11-24 23:15:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:33,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:15:33,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:15:33,942 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:15:33,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-24 23:15:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:34,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-24 23:15:34,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:35,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-24 23:15:35,159 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:15:35,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:15:35,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-11-24 23:15:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 23:15:35,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554449287] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:15:35,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-24 23:15:35,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10, 9, 10, 9] total 20 [2023-11-24 23:15:35,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200777769] [2023-11-24 23:15:35,315 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-24 23:15:35,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-24 23:15:35,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-24 23:15:35,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:15:35,318 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 20 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-24 23:15:38,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:38,404 INFO L93 Difference]: Finished difference Result 186 states and 253 transitions. [2023-11-24 23:15:38,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-24 23:15:38,405 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 91 [2023-11-24 23:15:38,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:38,407 INFO L225 Difference]: With dead ends: 186 [2023-11-24 23:15:38,407 INFO L226 Difference]: Without dead ends: 88 [2023-11-24 23:15:38,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2023-11-24 23:15:38,409 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 124 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:38,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 442 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-24 23:15:38,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-24 23:15:38,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2023-11-24 23:15:38,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 75 states have internal predecessors, (98), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:15:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 116 transitions. [2023-11-24 23:15:38,418 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 116 transitions. Word has length 91 [2023-11-24 23:15:38,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:38,419 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 116 transitions. [2023-11-24 23:15:38,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-24 23:15:38,419 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 116 transitions. [2023-11-24 23:15:38,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-24 23:15:38,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:38,421 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:38,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:38,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:38,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 (17)] Forceful destruction successful, exit code 0 [2023-11-24 23:15:39,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:15:39,041 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:39,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:39,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1618033662, now seen corresponding path program 1 times [2023-11-24 23:15:39,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:15:39,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728541146] [2023-11-24 23:15:39,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:39,043 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 [2023-11-24 23:15:39,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:15:39,044 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:15:39,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dfc688-d838-4ebc-962d-ff1a43e7b52d/bin/utaipan-verify-SwPr7d2a91/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 (20)] Waiting until timeout for monitored process [2023-11-24 23:15:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:39,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:15:39,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:15:39,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-11-24 23:15:39,608 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:15:39,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:15:39,608 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:15:39,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728541146] [2023-11-24 23:15:39,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728541146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:39,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:39,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:39,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254782765] [2023-11-24 23:15:39,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:39,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:39,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:15:39,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:39,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:39,611 INFO L87 Difference]: Start difference. First operand 86 states and 116 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)