./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:39,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:39,539 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:30:39,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:39,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:39,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:39,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:39,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:39,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:39,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:39,601 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:39,602 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:39,602 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:39,604 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:30:39,605 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:39,605 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:39,606 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:30:39,606 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:30:39,606 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:39,607 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:30:39,607 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:30:39,608 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:30:39,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:39,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:39,610 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:30:39,611 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:30:39,611 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:30:39,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:39,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:39,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:39,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:39,615 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:30:39,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:39,615 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:39,616 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:39,616 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:39,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:39,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:39,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:39,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:39,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:39,619 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:30:39,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:30:39,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:39,620 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:39,620 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:39,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:39,621 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_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b [2023-11-23 21:30:39,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:39,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:39,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:39,998 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:39,998 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:39,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2023-11-23 21:30:43,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:43,379 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:43,379 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2023-11-23 21:30:43,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/data/5def5e9fb/1720bb07b5f049508f755bf0d7e70135/FLAGf63eccb2e [2023-11-23 21:30:43,410 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/data/5def5e9fb/1720bb07b5f049508f755bf0d7e70135 [2023-11-23 21:30:43,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:43,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:43,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:43,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:43,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:43,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327a672c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43, skipping insertion in model container [2023-11-23 21:30:43,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,471 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:43,635 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_b7bb9ea3-095e-4be0-bfd2-12870023280d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2023-11-23 21:30:43,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:43,707 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:43,720 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_b7bb9ea3-095e-4be0-bfd2-12870023280d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2023-11-23 21:30:43,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:43,786 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:43,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43 WrapperNode [2023-11-23 21:30:43,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:43,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:43,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:43,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:43,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,870 INFO L138 Inliner]: procedures = 29, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 392 [2023-11-23 21:30:43,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:43,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:43,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:43,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:43,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:43,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:43,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:43,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:43,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (1/1) ... [2023-11-23 21:30:43,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:43,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:43,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:43,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 21:30:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:30:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 21:30:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:30:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-23 21:30:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:30:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:30:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:30:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:44,187 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:44,189 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:44,765 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:45,396 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:45,396 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:45,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:45 BoogieIcfgContainer [2023-11-23 21:30:45,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:45,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:45,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:45,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:45,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:43" (1/3) ... [2023-11-23 21:30:45,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df51913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:45, skipping insertion in model container [2023-11-23 21:30:45,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:43" (2/3) ... [2023-11-23 21:30:45,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df51913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:45, skipping insertion in model container [2023-11-23 21:30:45,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:45" (3/3) ... [2023-11-23 21:30:45,417 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-97.i [2023-11-23 21:30:45,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:45,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:45,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:45,513 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;@79fde5e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:45,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:45,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:30:45,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 21:30:45,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:45,532 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:45,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:45,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:45,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1606996482, now seen corresponding path program 1 times [2023-11-23 21:30:45,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:45,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514580468] [2023-11-23 21:30:45,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:45,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:48,145 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:30:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:49,668 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:30:49,670 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:30:49,671 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:30:49,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:30:49,681 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:30:49,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:30:49,759 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-23 21:30:49,761 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-23 21:30:49,761 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-23 21:30:49,762 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-23 21:30:49,762 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-23 21:30:49,763 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-23 21:30:49,763 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-23 21:30:49,764 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-23 21:30:49,765 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-23 21:30:49,765 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated [2023-11-23 21:30:49,765 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-23 21:30:49,765 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-23 21:30:49,766 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-23 21:30:49,766 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-23 21:30:49,766 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-11-23 21:30:49,767 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated [2023-11-23 21:30:49,767 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-23 21:30:49,767 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-23 21:30:49,767 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-23 21:30:49,767 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-23 21:30:49,768 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-23 21:30:49,768 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-11-23 21:30:49,768 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-23 21:30:49,769 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-23 21:30:49,770 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-23 21:30:49,770 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-23 21:30:49,771 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-23 21:30:49,771 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-23 21:30:49,772 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-23 21:30:49,772 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-23 21:30:49,773 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-11-23 21:30:49,774 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-11-23 21:30:49,774 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-23 21:30:49,775 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-23 21:30:49,775 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-23 21:30:49,776 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-23 21:30:49,776 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-23 21:30:49,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-23 21:30:49,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-23 21:30:49,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-23 21:30:49,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-23 21:30:49,779 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-23 21:30:49,779 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-23 21:30:49,780 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-23 21:30:49,780 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-23 21:30:49,781 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-23 21:30:49,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:30:49 BoogieIcfgContainer [2023-11-23 21:30:49,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:30:49,802 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:30:49,802 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:30:49,802 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:30:49,803 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:45" (3/4) ... [2023-11-23 21:30:49,805 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:30:49,806 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:30:49,808 INFO L158 Benchmark]: Toolchain (without parser) took 6389.18ms. Allocated memory was 192.9MB in the beginning and 255.9MB in the end (delta: 62.9MB). Free memory was 149.7MB in the beginning and 125.2MB in the end (delta: 24.5MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. [2023-11-23 21:30:49,808 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:30:49,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.69ms. Allocated memory is still 192.9MB. Free memory was 149.7MB in the beginning and 135.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:30:49,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.03ms. Allocated memory is still 192.9MB. Free memory was 135.7MB in the beginning and 131.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:30:49,810 INFO L158 Benchmark]: Boogie Preprocessor took 56.81ms. Allocated memory is still 192.9MB. Free memory was 131.5MB in the beginning and 128.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:30:49,811 INFO L158 Benchmark]: RCFGBuilder took 1470.17ms. Allocated memory is still 192.9MB. Free memory was 128.8MB in the beginning and 105.0MB in the end (delta: 23.8MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2023-11-23 21:30:49,812 INFO L158 Benchmark]: TraceAbstraction took 4398.84ms. Allocated memory was 192.9MB in the beginning and 255.9MB in the end (delta: 62.9MB). Free memory was 103.9MB in the beginning and 126.2MB in the end (delta: -22.3MB). Peak memory consumption was 104.6MB. Max. memory is 16.1GB. [2023-11-23 21:30:49,812 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 255.9MB. Free memory was 126.2MB in the beginning and 125.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:30:49,816 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.69ms. Allocated memory is still 192.9MB. Free memory was 149.7MB in the beginning and 135.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.03ms. Allocated memory is still 192.9MB. Free memory was 135.7MB in the beginning and 131.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.81ms. Allocated memory is still 192.9MB. Free memory was 131.5MB in the beginning and 128.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1470.17ms. Allocated memory is still 192.9MB. Free memory was 128.8MB in the beginning and 105.0MB in the end (delta: 23.8MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4398.84ms. Allocated memory was 192.9MB in the beginning and 255.9MB in the end (delta: 62.9MB). Free memory was 103.9MB in the beginning and 126.2MB in the end (delta: -22.3MB). Peak memory consumption was 104.6MB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 255.9MB. Free memory was 126.2MB in the beginning and 125.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - 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~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 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 43, overapproximation of bitwiseOr at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 1, 0 }; [L25-L27] float float_Array_0[2] = { 32.5, 127.4 }; [L28-L30] signed char signed_char_Array_0[3] = { 16, 100, -1 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 100, 20113, 128, 32, 16 }; [L34-L36] unsigned short int unsigned_short_int_Array_0[2] = { 10, 256 }; [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] FCALL updateLastVariables() [L108] CALL updateVariables() [L70] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L71] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L72] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L73] BOOL_unsigned_char_Array_0[2] = __VERIFIER_nondet_uchar() [L74] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L75] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L76] float_Array_0[1] = __VERIFIER_nondet_float() [L77] EXPR float_Array_0[1] [L77] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L77] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) [L77] EXPR float_Array_0[1] [L77] EXPR float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F [L77] EXPR float_Array_0[1] [L77] EXPR float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F [L77] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L77] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L78] signed_char_Array_0[0] = __VERIFIER_nondet_char() [L79] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L79] CALL assume_abort_if_not(signed_char_Array_0[0] >= -31) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(signed_char_Array_0[0] >= -31) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L80] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L80] CALL assume_abort_if_not(signed_char_Array_0[0] <= 32) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(signed_char_Array_0[0] <= 32) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L81] signed_char_Array_0[2] = __VERIFIER_nondet_char() [L82] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L82] CALL assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L83] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L83] CALL assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L84] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L85] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L85] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L86] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L86] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L87] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L88] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L88] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L89] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L89] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L90] signed_short_int_Array_0[3] = __VERIFIER_nondet_short() [L91] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L91] CALL assume_abort_if_not(signed_short_int_Array_0[3] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(signed_short_int_Array_0[3] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L92] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L92] CALL assume_abort_if_not(signed_short_int_Array_0[3] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(signed_short_int_Array_0[3] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L93] unsigned_short_int_Array_0[1] = __VERIFIER_nondet_ushort() [L94] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L94] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L95] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L95] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L108] RET updateVariables() [L109] CALL step() [L40] EXPR unsigned_short_int_Array_0[1] [L40] unsigned_short_int_Array_0[0] = unsigned_short_int_Array_0[1] [L41] EXPR float_Array_0[1] [L41] float_Array_0[0] = float_Array_0[1] [L42] EXPR signed_char_Array_0[0] [L42] signed_short_int_Array_0[2] = signed_char_Array_0[0] [L43] EXPR float_Array_0[0] [L43] COND TRUE 127.5f > float_Array_0[0] [L44] EXPR BOOL_unsigned_char_Array_0[2] [L44] EXPR BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1] [L44] EXPR BOOL_unsigned_char_Array_0[1] [L44] EXPR BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1] [L44] BOOL_unsigned_char_Array_0[0] = (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]) [L48] EXPR unsigned_short_int_Array_0[0] [L48] EXPR signed_short_int_Array_0[3] [L48] COND FALSE !(unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) [L51] EXPR signed_short_int_Array_0[2] [L51] EXPR (32 * -25) | signed_short_int_Array_0[2] [L51] EXPR signed_char_Array_0[2] [L51] COND FALSE !(((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) [L57] BOOL_unsigned_char_Array_0[0] [L57] COND TRUE BOOL_unsigned_char_Array_0[0] [L58] EXPR signed_char_Array_0[1] [L58] EXPR signed_short_int_Array_0[2] [L58] COND TRUE signed_char_Array_0[1] > signed_short_int_Array_0[2] [L59] BOOL_unsigned_char_Array_0[0] [L59] COND TRUE BOOL_unsigned_char_Array_0[0] [L60] EXPR signed_short_int_Array_0[3] [L60] EXPR signed_short_int_Array_0[1] [L60] EXPR signed_short_int_Array_0[0] [L60] signed_short_int_Array_0[4] = (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])) [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR BOOL_unsigned_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1 [L100] EXPR signed_char_Array_0[1] [L100] EXPR signed_short_int_Array_0[2] [L100] EXPR (signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8)) [L100] EXPR BOOL_unsigned_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0])) [L100] EXPR signed_short_int_Array_0[4] [L100] EXPR signed_short_int_Array_0[3] [L100] EXPR signed_short_int_Array_0[1] [L100] EXPR signed_short_int_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0])) [L100] EXPR (signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8)) [L100] EXPR BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1 [L100] EXPR (BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1)) [L100] EXPR unsigned_short_int_Array_0[0] [L100] EXPR signed_short_int_Array_0[3] [L100] EXPR (unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1) [L100] EXPR signed_short_int_Array_0[2] [L100] EXPR (32 * -25) | signed_short_int_Array_0[2] [L100] EXPR signed_char_Array_0[2] [L100] EXPR (((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1 [L100] EXPR BOOL_unsigned_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1 [L100] EXPR signed_char_Array_0[1] [L100] EXPR signed_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1 [L100] EXPR (((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1 [L100] EXPR (unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1) [L100] EXPR (BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1)) [L100] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2])))) [L100] EXPR (((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1])) [L100] EXPR ((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1])) [L100] EXPR (((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (signed_short_int_Array_0[2] == ((signed short int) signed_char_Array_0[0])) [L100-L101] return (((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (signed_short_int_Array_0[2] == ((signed short int) signed_char_Array_0[0])) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 1, TraceHistogramMax: 17, 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=43occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:30:49,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:52,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:52,583 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:30:52,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:52,590 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:52,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:52,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:52,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:52,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:52,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:52,624 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:52,624 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:52,625 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:52,625 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:52,626 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:52,626 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:52,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:52,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:52,628 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:30:52,629 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:30:52,629 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:52,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:52,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:52,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:52,631 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:30:52,632 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:30:52,632 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:30:52,632 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:30:52,633 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:52,633 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:52,634 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:52,634 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:30:52,635 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:52,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:52,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:52,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:52,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:52,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:52,636 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:30:52,637 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:30:52,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:52,637 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:52,637 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:52,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:52,638 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_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b [2023-11-23 21:30:53,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:53,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:53,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:53,044 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:53,046 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:53,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2023-11-23 21:30:56,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:56,607 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:56,608 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2023-11-23 21:30:56,624 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/data/145114fc6/598bff9a7b5d47a690b5e3f7fe5c537a/FLAG5918f7a86 [2023-11-23 21:30:56,646 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/data/145114fc6/598bff9a7b5d47a690b5e3f7fe5c537a [2023-11-23 21:30:56,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:56,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:56,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:56,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:56,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:56,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:56" (1/1) ... [2023-11-23 21:30:56,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50bcd1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:56, skipping insertion in model container [2023-11-23 21:30:56,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:56" (1/1) ... [2023-11-23 21:30:56,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:56,958 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_b7bb9ea3-095e-4be0-bfd2-12870023280d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2023-11-23 21:30:57,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:57,114 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:57,136 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_b7bb9ea3-095e-4be0-bfd2-12870023280d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2023-11-23 21:30:57,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:57,254 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:57,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57 WrapperNode [2023-11-23 21:30:57,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:57,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:57,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:57,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:57,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,392 INFO L138 Inliner]: procedures = 33, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 366 [2023-11-23 21:30:57,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:57,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:57,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:57,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:57,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:57,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:57,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:57,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:57,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:57,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:57,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:57,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 21:30:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-23 21:30:57,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:30:57,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-23 21:30:57,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-23 21:30:57,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-23 21:30:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-23 21:30:57,637 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:30:57,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:30:57,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:57,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:57,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 21:30:57,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-23 21:30:57,764 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:57,767 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:58,447 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:58,530 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:58,531 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:58,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:58 BoogieIcfgContainer [2023-11-23 21:30:58,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:58,536 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:58,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:58,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:58,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:56" (1/3) ... [2023-11-23 21:30:58,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ae1efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:58, skipping insertion in model container [2023-11-23 21:30:58,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57" (2/3) ... [2023-11-23 21:30:58,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ae1efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:58, skipping insertion in model container [2023-11-23 21:30:58,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:58" (3/3) ... [2023-11-23 21:30:58,549 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-97.i [2023-11-23 21:30:58,572 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:58,572 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:58,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:58,660 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;@7245bbf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:58,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:58,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 74 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:30:58,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 21:30:58,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:58,692 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:58,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:58,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:58,700 INFO L85 PathProgramCache]: Analyzing trace with hash 884915707, now seen corresponding path program 1 times [2023-11-23 21:30:58,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:58,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483264187] [2023-11-23 21:30:58,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:58,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:58,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:58,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:58,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:30:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:59,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:30:59,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:59,244 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-11-23 21:30:59,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:59,246 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:59,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483264187] [2023-11-23 21:30:59,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483264187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:59,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:59,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:59,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071227432] [2023-11-23 21:30:59,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:59,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:30:59,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:59,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:30:59,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:30:59,301 INFO L87 Difference]: Start difference. First operand has 93 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 74 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:30:59,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:59,383 INFO L93 Difference]: Finished difference Result 183 states and 291 transitions. [2023-11-23 21:30:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:30:59,386 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2023-11-23 21:30:59,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:59,398 INFO L225 Difference]: With dead ends: 183 [2023-11-23 21:30:59,398 INFO L226 Difference]: Without dead ends: 91 [2023-11-23 21:30:59,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:30:59,407 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:59,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:30:59,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-23 21:30:59,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-23 21:30:59,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 72 states have (on average 1.375) internal successors, (99), 72 states have internal predecessors, (99), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:30:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 133 transitions. [2023-11-23 21:30:59,468 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 133 transitions. Word has length 129 [2023-11-23 21:30:59,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:59,468 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 133 transitions. [2023-11-23 21:30:59,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:30:59,469 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions. [2023-11-23 21:30:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 21:30:59,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:59,476 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:59,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:59,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:59,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:59,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:59,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1373466921, now seen corresponding path program 1 times [2023-11-23 21:30:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:59,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611077862] [2023-11-23 21:30:59,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:59,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:59,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:59,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:59,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:31:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:00,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:31:00,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:31:00,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:00,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:00,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611077862] [2023-11-23 21:31:00,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611077862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:00,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:00,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:31:00,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148200006] [2023-11-23 21:31:00,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:00,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:31:00,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:00,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:31:00,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:31:00,118 INFO L87 Difference]: Start difference. First operand 91 states and 133 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:00,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:00,241 INFO L93 Difference]: Finished difference Result 204 states and 299 transitions. [2023-11-23 21:31:00,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:31:00,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2023-11-23 21:31:00,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:00,246 INFO L225 Difference]: With dead ends: 204 [2023-11-23 21:31:00,247 INFO L226 Difference]: Without dead ends: 114 [2023-11-23 21:31:00,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:31:00,249 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 49 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:00,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 408 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:31:00,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-23 21:31:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 93. [2023-11-23 21:31:00,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:31:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2023-11-23 21:31:00,267 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 129 [2023-11-23 21:31:00,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:00,269 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2023-11-23 21:31:00,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2023-11-23 21:31:00,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:31:00,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:00,273 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:00,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-23 21:31:00,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:00,479 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:00,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:00,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1026092023, now seen corresponding path program 1 times [2023-11-23 21:31:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:00,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102221469] [2023-11-23 21:31:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:00,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:00,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:00,483 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:00,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:31:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:00,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:31:00,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:00,859 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:31:00,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:00,860 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:00,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102221469] [2023-11-23 21:31:00,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102221469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:00,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:00,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:31:00,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16407542] [2023-11-23 21:31:00,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:00,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:31:00,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:00,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:31:00,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:31:00,865 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:01,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:01,462 INFO L93 Difference]: Finished difference Result 248 states and 356 transitions. [2023-11-23 21:31:01,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:31:01,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-23 21:31:01,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:01,468 INFO L225 Difference]: With dead ends: 248 [2023-11-23 21:31:01,468 INFO L226 Difference]: Without dead ends: 156 [2023-11-23 21:31:01,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:31:01,471 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:01,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 419 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:31:01,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-23 21:31:01,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 132. [2023-11-23 21:31:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 108 states have (on average 1.3518518518518519) internal successors, (146), 109 states have internal predecessors, (146), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:31:01,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 188 transitions. [2023-11-23 21:31:01,492 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 188 transitions. Word has length 131 [2023-11-23 21:31:01,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:01,493 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 188 transitions. [2023-11-23 21:31:01,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:01,494 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 188 transitions. [2023-11-23 21:31:01,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:31:01,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:01,497 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:01,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:01,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:01,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:01,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:01,704 INFO L85 PathProgramCache]: Analyzing trace with hash 640329486, now seen corresponding path program 1 times [2023-11-23 21:31:01,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:01,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389730203] [2023-11-23 21:31:01,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:01,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:01,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:01,707 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:01,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 21:31:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:02,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:31:02,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:02,028 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:31:02,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:02,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:02,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389730203] [2023-11-23 21:31:02,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389730203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:02,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:02,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:31:02,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70226405] [2023-11-23 21:31:02,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:02,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:31:02,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:02,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:31:02,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:31:02,033 INFO L87 Difference]: Start difference. First operand 132 states and 188 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:02,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:02,137 INFO L93 Difference]: Finished difference Result 287 states and 409 transitions. [2023-11-23 21:31:02,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:31:02,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-23 21:31:02,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:02,141 INFO L225 Difference]: With dead ends: 287 [2023-11-23 21:31:02,142 INFO L226 Difference]: Without dead ends: 156 [2023-11-23 21:31:02,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:31:02,144 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 21 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:02,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 378 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:31:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-23 21:31:02,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 136. [2023-11-23 21:31:02,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 112 states have (on average 1.3392857142857142) internal successors, (150), 113 states have internal predecessors, (150), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:31:02,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 192 transitions. [2023-11-23 21:31:02,164 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 192 transitions. Word has length 131 [2023-11-23 21:31:02,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:02,165 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 192 transitions. [2023-11-23 21:31:02,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:02,166 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 192 transitions. [2023-11-23 21:31:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:31:02,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:02,169 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:02,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:02,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:02,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:02,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:02,376 INFO L85 PathProgramCache]: Analyzing trace with hash -169017140, now seen corresponding path program 1 times [2023-11-23 21:31:02,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:02,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637847211] [2023-11-23 21:31:02,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:02,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:02,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:02,379 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:02,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 21:31:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:02,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:31:02,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:02,740 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:31:02,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:02,750 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:02,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637847211] [2023-11-23 21:31:02,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637847211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:02,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:02,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:31:02,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345068996] [2023-11-23 21:31:02,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:02,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:31:02,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:02,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:31:02,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:31:02,754 INFO L87 Difference]: Start difference. First operand 136 states and 192 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:02,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:02,906 INFO L93 Difference]: Finished difference Result 297 states and 419 transitions. [2023-11-23 21:31:02,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:31:02,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-23 21:31:02,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:02,914 INFO L225 Difference]: With dead ends: 297 [2023-11-23 21:31:02,916 INFO L226 Difference]: Without dead ends: 162 [2023-11-23 21:31:02,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:31:02,919 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 24 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:02,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 499 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:31:02,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-23 21:31:02,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 140. [2023-11-23 21:31:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 116 states have (on average 1.3275862068965518) internal successors, (154), 117 states have internal predecessors, (154), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:31:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 196 transitions. [2023-11-23 21:31:02,957 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 196 transitions. Word has length 131 [2023-11-23 21:31:02,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:02,964 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 196 transitions. [2023-11-23 21:31:02,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:02,964 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 196 transitions. [2023-11-23 21:31:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:31:02,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:02,969 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:02,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:03,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:03,170 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:03,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash -111758838, now seen corresponding path program 1 times [2023-11-23 21:31:03,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:03,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323681469] [2023-11-23 21:31:03,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:03,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:03,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:03,174 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:03,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-23 21:31:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:03,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:31:03,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:04,360 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 12 treesize of output 8 [2023-11-23 21:31:04,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-23 21:31:04,441 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 [2023-11-23 21:31:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:31:04,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:04,454 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:04,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323681469] [2023-11-23 21:31:04,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323681469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:04,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:04,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:31:04,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93481261] [2023-11-23 21:31:04,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:04,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:31:04,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:04,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:31:04,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:31:04,457 INFO L87 Difference]: Start difference. First operand 140 states and 196 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:05,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:05,136 INFO L93 Difference]: Finished difference Result 301 states and 422 transitions. [2023-11-23 21:31:05,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:31:05,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-23 21:31:05,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:05,139 INFO L225 Difference]: With dead ends: 301 [2023-11-23 21:31:05,139 INFO L226 Difference]: Without dead ends: 162 [2023-11-23 21:31:05,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:31:05,141 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 95 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:05,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 322 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:31:05,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-23 21:31:05,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 147. [2023-11-23 21:31:05,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 123 states have (on average 1.3333333333333333) internal successors, (164), 124 states have internal predecessors, (164), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:31:05,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 206 transitions. [2023-11-23 21:31:05,159 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 206 transitions. Word has length 131 [2023-11-23 21:31:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:05,160 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 206 transitions. [2023-11-23 21:31:05,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:05,161 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 206 transitions. [2023-11-23 21:31:05,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:31:05,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:05,163 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:05,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:05,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:05,371 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:05,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:05,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1917197172, now seen corresponding path program 1 times [2023-11-23 21:31:05,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:05,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646732703] [2023-11-23 21:31:05,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:05,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:05,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:05,375 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:05,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-23 21:31:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:05,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 21:31:05,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:06,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-23 21:31:07,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-23 21:31:07,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-23 21:31:07,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-23 21:31:08,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-23 21:31:08,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-23 21:31:09,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-23 21:31:09,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 24 [2023-11-23 21:31:09,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 35 treesize of output 28 [2023-11-23 21:31:09,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2023-11-23 21:31:09,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:31:09,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2023-11-23 21:31:09,853 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 148 proven. 78 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2023-11-23 21:31:09,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:31:22,477 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv2 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (and (forall ((v_ArrVal_208 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_206 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_207 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_206) |c_~#float_Array_0~0.base| v_ArrVal_208) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_207))) (let ((.cse1 (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (forall ((v_ArrVal_210 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ extract 7 0) (select (select (store (store .cse0 |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse1 |c_~#BOOL_unsigned_char_Array_0~0.offset| ((_ sign_extend 24) (_ bv1 8)))) |c_~#signed_char_Array_0~0.base| v_ArrVal_210) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))) (= ((_ extract 7 0) (select .cse1 .cse2)) (_ bv0 8)))))) (forall ((v_ArrVal_208 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_206 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_207 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_206) |c_~#float_Array_0~0.base| v_ArrVal_208) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_207))) (let ((.cse3 (select .cse4 |c_~#BOOL_unsigned_char_Array_0~0.base|))) (or (not (= ((_ extract 7 0) (select .cse3 .cse2)) (_ bv0 8))) (forall ((v_ArrVal_210 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ extract 7 0) (select (select (store (store .cse4 |c_~#BOOL_unsigned_char_Array_0~0.base| (store .cse3 |c_~#BOOL_unsigned_char_Array_0~0.offset| ((_ sign_extend 24) (_ bv0 8)))) |c_~#signed_char_Array_0~0.base| v_ArrVal_210) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))))))))) is different from false [2023-11-23 21:31:22,548 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:22,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646732703] [2023-11-23 21:31:22,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646732703] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:31:22,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [231494165] [2023-11-23 21:31:22,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:22,549 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:31:22,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:31:22,556 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:31:22,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-23 21:31:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:23,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 21:31:23,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:23,703 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 [2023-11-23 21:31:24,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-23 21:31:24,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-23 21:31:25,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-23 21:31:25,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-23 21:31:25,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-23 21:31:26,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-23 21:31:26,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-23 21:31:26,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2023-11-23 21:31:26,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-11-23 21:31:27,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-11-23 21:31:27,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-23 21:31:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 132 proven. 42 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-23 21:31:27,178 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:31:27,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [231494165] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:31:27,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301324011] [2023-11-23 21:31:27,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:27,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:31:27,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:27,734 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:31:27,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 21:31:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:27,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:31:27,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:27,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:31:27,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 35 [2023-11-23 21:31:28,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:31:28,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 51 [2023-11-23 21:31:28,503 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:31:28,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:28,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301324011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:28,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:31:28,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15, 11] total 31 [2023-11-23 21:31:28,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281539447] [2023-11-23 21:31:28,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:28,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:31:28,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:28,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:31:28,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1151, Unknown=46, NotChecked=70, Total=1406 [2023-11-23 21:31:28,506 INFO L87 Difference]: Start difference. First operand 147 states and 206 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:29,630 INFO L93 Difference]: Finished difference Result 351 states and 489 transitions. [2023-11-23 21:31:29,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:31:29,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-23 21:31:29,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:29,635 INFO L225 Difference]: With dead ends: 351 [2023-11-23 21:31:29,636 INFO L226 Difference]: Without dead ends: 205 [2023-11-23 21:31:29,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 405 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=169, Invalid=1429, Unknown=46, NotChecked=78, Total=1722 [2023-11-23 21:31:29,638 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 150 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:29,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 659 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 21:31:29,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-23 21:31:29,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 157. [2023-11-23 21:31:29,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 133 states have (on average 1.3233082706766917) internal successors, (176), 134 states have internal predecessors, (176), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:31:29,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 218 transitions. [2023-11-23 21:31:29,653 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 218 transitions. Word has length 131 [2023-11-23 21:31:29,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:29,654 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 218 transitions. [2023-11-23 21:31:29,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:29,654 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 218 transitions. [2023-11-23 21:31:29,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 21:31:29,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:29,657 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:29,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:29,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:30,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:30,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:31:30,262 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:30,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash 305710175, now seen corresponding path program 1 times [2023-11-23 21:31:30,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:30,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152711250] [2023-11-23 21:31:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:30,263 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 [2023-11-23 21:31:30,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:30,270 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:30,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-23 21:31:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:30,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:31:30,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:30,528 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 14 treesize of output 10 [2023-11-23 21:31:30,554 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 25 [2023-11-23 21:31:30,584 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:31:30,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:30,585 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:30,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152711250] [2023-11-23 21:31:30,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152711250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:30,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:30,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:31:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407554282] [2023-11-23 21:31:30,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:30,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:31:30,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:30,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:31:30,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:31:30,588 INFO L87 Difference]: Start difference. First operand 157 states and 218 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:31,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:31,224 INFO L93 Difference]: Finished difference Result 431 states and 598 transitions. [2023-11-23 21:31:31,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 21:31:31,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2023-11-23 21:31:31,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:31,231 INFO L225 Difference]: With dead ends: 431 [2023-11-23 21:31:31,231 INFO L226 Difference]: Without dead ends: 275 [2023-11-23 21:31:31,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:31:31,233 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 169 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:31,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 620 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:31:31,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-11-23 21:31:31,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 161. [2023-11-23 21:31:31,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 138 states have internal predecessors, (182), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:31:31,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 224 transitions. [2023-11-23 21:31:31,249 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 224 transitions. Word has length 132 [2023-11-23 21:31:31,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:31,250 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 224 transitions. [2023-11-23 21:31:31,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:31:31,250 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 224 transitions. [2023-11-23 21:31:31,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 21:31:31,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:31,253 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:31,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:31,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:31,464 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:31,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:31,465 INFO L85 PathProgramCache]: Analyzing trace with hash -80052362, now seen corresponding path program 1 times [2023-11-23 21:31:31,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:31,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775204585] [2023-11-23 21:31:31,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:31,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:31,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:31,466 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:31,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb9ea3-095e-4be0-bfd2-12870023280d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-23 21:31:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:31,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:31:31,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:32,751 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 12 treesize of output 8 [2023-11-23 21:31:32,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-23 21:31:32,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-23 21:31:32,887 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 [2023-11-23 21:31:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:31:32,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:32,903 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:32,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775204585] [2023-11-23 21:31:32,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775204585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:32,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:32,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:31:32,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867954621] [2023-11-23 21:31:32,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:32,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:31:32,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:32,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:31:32,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:31:32,905 INFO L87 Difference]: Start difference. First operand 161 states and 224 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)