./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:01,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:01,851 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:08:01,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:01,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:01,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:01,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:01,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:01,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:01,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:01,901 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:01,902 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:01,902 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:01,903 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:08:01,903 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:01,904 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:01,904 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:08:01,905 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:08:01,905 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:01,906 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:08:01,906 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:08:01,913 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:08:01,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:01,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:01,915 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:01,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:08:01,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:01,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:01,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:01,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:01,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:01,936 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:01,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:01,937 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:01,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:01,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:01,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:01,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:01,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:01,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:01,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:01,938 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:08:01,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:08:01,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:01,939 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:01,939 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:01,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:01,940 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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 [2023-11-23 21:08:02,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:02,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:02,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:02,273 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:02,273 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:02,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-23 21:08:05,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:05,610 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:05,610 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-23 21:08:05,620 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/data/c666b7639/715cec8c823b45e8b437885442a084bb/FLAG5a8bedc42 [2023-11-23 21:08:05,635 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/data/c666b7639/715cec8c823b45e8b437885442a084bb [2023-11-23 21:08:05,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:05,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:05,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:05,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:05,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:05,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:05" (1/1) ... [2023-11-23 21:08:05,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726ac2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:05, skipping insertion in model container [2023-11-23 21:08:05,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:05" (1/1) ... [2023-11-23 21:08:05,694 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:05,837 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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-23 21:08:05,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:05,908 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:05,919 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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-23 21:08:05,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:05,999 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:06,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06 WrapperNode [2023-11-23 21:08:06,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:06,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:06,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:06,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:06,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,101 INFO L138 Inliner]: procedures = 29, calls = 159, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 438 [2023-11-23 21:08:06,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:06,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:06,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:06,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:06,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:06,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:06,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:06,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:06,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (1/1) ... [2023-11-23 21:08:06,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:06,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:06,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:06,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:08:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 21:08:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 21:08:06,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:08:06,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-23 21:08:06,311 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:06,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:08:06,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:06,479 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:06,481 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:07,090 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:07,755 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:07,756 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:08:07,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:07 BoogieIcfgContainer [2023-11-23 21:08:07,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:07,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:07,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:07,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:07,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:05" (1/3) ... [2023-11-23 21:08:07,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104ae713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:07, skipping insertion in model container [2023-11-23 21:08:07,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:06" (2/3) ... [2023-11-23 21:08:07,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104ae713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:07, skipping insertion in model container [2023-11-23 21:08:07,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:07" (3/3) ... [2023-11-23 21:08:07,770 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-26.i [2023-11-23 21:08:07,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:07,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:08:07,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:07,849 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;@404623ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:07,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:08:07,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:07,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 21:08:07,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:07,865 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:07,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:07,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:07,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1580038406, now seen corresponding path program 1 times [2023-11-23 21:08:07,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:07,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322625824] [2023-11-23 21:08:07,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:07,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:08,175 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:08:08,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242895562] [2023-11-23 21:08:08,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:08,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:08,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:08,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:08:08,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:08:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:09,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:08:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:11,643 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:08:11,645 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:08:11,647 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:08:11,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:11,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:08:11,867 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:08:11,871 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:08:11,942 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-23 21:08:11,944 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-23 21:08:11,945 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-23 21:08:11,947 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-23 21:08:11,948 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-23 21:08:11,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-23 21:08:11,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-23 21:08:11,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-23 21:08:11,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-23 21:08:11,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-23 21:08:11,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-11-23 21:08:11,951 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-23 21:08:11,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-23 21:08:11,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-23 21:08:11,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-11-23 21:08:11,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-23 21:08:11,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-23 21:08:11,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-23 21:08:11,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-23 21:08:11,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-23 21:08:11,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-23 21:08:11,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-11-23 21:08:11,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-11-23 21:08:11,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-11-23 21:08:11,956 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-23 21:08:11,957 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-11-23 21:08:11,958 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-23 21:08:11,958 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-23 21:08:11,958 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-11-23 21:08:11,958 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-11-23 21:08:11,959 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-23 21:08:11,959 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-23 21:08:11,960 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-23 21:08:11,962 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-23 21:08:11,962 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-23 21:08:11,964 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-23 21:08:11,965 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-23 21:08:11,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-23 21:08:11,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-23 21:08:11,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-23 21:08:11,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-23 21:08:11,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-23 21:08:11,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:08:11 BoogieIcfgContainer [2023-11-23 21:08:11,993 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:08:11,994 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:08:11,994 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:08:11,994 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:08:11,994 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:07" (3/4) ... [2023-11-23 21:08:11,997 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:08:11,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:08:11,999 INFO L158 Benchmark]: Toolchain (without parser) took 6359.91ms. Allocated memory is still 182.5MB. Free memory was 149.9MB in the beginning and 66.2MB in the end (delta: 83.7MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. [2023-11-23 21:08:11,999 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 102.7MB in the beginning and 102.6MB in the end (delta: 72.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:12,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.21ms. Allocated memory is still 182.5MB. Free memory was 149.9MB in the beginning and 135.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:08:12,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.66ms. Allocated memory is still 182.5MB. Free memory was 135.3MB in the beginning and 131.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:08:12,001 INFO L158 Benchmark]: Boogie Preprocessor took 104.28ms. Allocated memory is still 182.5MB. Free memory was 131.5MB in the beginning and 129.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:08:12,002 INFO L158 Benchmark]: RCFGBuilder took 1551.53ms. Allocated memory is still 182.5MB. Free memory was 128.6MB in the beginning and 142.8MB in the end (delta: -14.2MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2023-11-23 21:08:12,003 INFO L158 Benchmark]: TraceAbstraction took 4231.68ms. Allocated memory is still 182.5MB. Free memory was 142.8MB in the beginning and 67.3MB in the end (delta: 75.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2023-11-23 21:08:12,003 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 182.5MB. Free memory was 67.3MB in the beginning and 66.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:08:12,007 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 102.7MB in the beginning and 102.6MB in the end (delta: 72.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.21ms. Allocated memory is still 182.5MB. Free memory was 149.9MB in the beginning and 135.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.66ms. Allocated memory is still 182.5MB. Free memory was 135.3MB in the beginning and 131.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.28ms. Allocated memory is still 182.5MB. Free memory was 131.5MB in the beginning and 129.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1551.53ms. Allocated memory is still 182.5MB. Free memory was 128.6MB in the beginning and 142.8MB in the end (delta: -14.2MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4231.68ms. Allocated memory is still 182.5MB. Free memory was 142.8MB in the beginning and 67.3MB in the end (delta: 75.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 182.5MB. Free memory was 67.3MB in the beginning and 66.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 51, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -1; [L23] signed short int* var_1_1_Pointer = &(var_1_1); [L24] signed short int var_1_4 = 1; [L25] signed short int* var_1_4_Pointer = &(var_1_4); [L26] float var_1_12 = 1.125; [L27] float* var_1_12_Pointer = &(var_1_12); [L28] float var_1_13 = 199.5; [L29] float* var_1_13_Pointer = &(var_1_13); [L30] float var_1_14 = 100000000000000.3; [L31] float* var_1_14_Pointer = &(var_1_14); [L32] unsigned char var_1_15 = 64; [L33] unsigned char* var_1_15_Pointer = &(var_1_15); [L34] unsigned char var_1_16 = 2; [L35] unsigned char* var_1_16_Pointer = &(var_1_16); [L36] unsigned long int var_1_17 = 50; [L37] unsigned long int* var_1_17_Pointer = &(var_1_17); [L38] signed long int var_1_19 = -32; [L39] signed long int* var_1_19_Pointer = &(var_1_19); [L40] float var_1_20 = 8.75; [L41] float* var_1_20_Pointer = &(var_1_20); [L42] unsigned char last_1_var_1_15 = 64; [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L78] EXPR \read(var_1_15) [L78] last_1_var_1_15 = var_1_15 [L88] RET updateLastVariables() [L89] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_short() [L63] EXPR \read(var_1_4) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L63] CALL assume_abort_if_not(var_1_4 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_4 >= -32767) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L64] EXPR \read(var_1_4) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L64] CALL assume_abort_if_not(var_1_4 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 <= 32766) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L65] var_1_13 = __VERIFIER_nondet_float() [L66] EXPR \read(var_1_13) [L66] EXPR var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F [L66] EXPR \read(var_1_13) [L66] EXPR var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F [L66] EXPR (var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L66] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L67] var_1_14 = __VERIFIER_nondet_float() [L68] EXPR \read(var_1_14) [L68] EXPR var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F [L68] EXPR \read(var_1_14) [L68] EXPR var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F [L68] EXPR (var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L68] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L69] var_1_16 = __VERIFIER_nondet_uchar() [L70] EXPR \read(var_1_16) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L70] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L71] EXPR \read(var_1_16) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L71] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L72] var_1_19 = __VERIFIER_nondet_long() [L73] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L73] CALL assume_abort_if_not(var_1_19 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_19 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L74] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L74] CALL assume_abort_if_not(var_1_19 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_19 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L75] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L75] CALL assume_abort_if_not(var_1_19 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_19 != 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L89] RET updateVariables() [L90] CALL step() [L46] EXPR \read(*var_1_13_Pointer) [L46] EXPR \read(*var_1_14_Pointer) [L46] (*(var_1_12_Pointer)) = ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer))) [L47] EXPR \read(*var_1_4_Pointer) [L47] COND FALSE !((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) [L50] EXPR \read(*var_1_13_Pointer) [L50] (*(var_1_20_Pointer)) = (*(var_1_13_Pointer)) [L51] EXPR \read(*var_1_20_Pointer) [L51] EXPR \read(*var_1_20_Pointer) [L51] COND TRUE (*(var_1_20_Pointer)) > (*(var_1_20_Pointer)) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L52] (*(var_1_1_Pointer)) = (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))) [L56] EXPR \read(*var_1_15_Pointer) [L56] EXPR \read(*var_1_15_Pointer) [L56] EXPR \read(*var_1_1_Pointer) [L56] signed long int stepLocal_0 = (*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer))); [L57] EXPR \read(*var_1_15_Pointer) [L57] EXPR \read(*var_1_1_Pointer) [L57] EXPR \read(*var_1_19_Pointer) [L57] COND FALSE !(stepLocal_0 != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) [L90] RET step() [L91] CALL, EXPR property() [L81] EXPR \read(*var_1_20_Pointer) [L81] EXPR \read(*var_1_20_Pointer) [L81] EXPR ((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))))))) [L81] EXPR \read(*var_1_1_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR ((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR ((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) [L81] EXPR ((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))))))) [L81] EXPR (((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer))))) [L81] EXPR ((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1) [L81] EXPR (((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1) [L81] EXPR ((((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1)) && ((*(var_1_20_Pointer)) == ((float) (*(var_1_13_Pointer)))) [L81-L82] return ((((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1)) && ((*(var_1_20_Pointer)) == ((float) (*(var_1_13_Pointer)))) ; [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 1, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:08:12,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:14,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:14,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:08:14,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:14,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:14,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:14,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:14,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:14,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:14,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:14,904 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:14,905 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:14,906 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:14,906 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:14,907 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:14,907 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:14,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:14,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:14,910 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:14,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:14,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:14,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:14,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:14,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:14,913 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:08:14,914 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:08:14,914 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:08:14,915 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:14,915 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:14,916 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:14,916 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:14,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:08:14,917 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:14,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:14,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:14,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:14,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:14,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:14,920 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:08:14,920 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:14,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:14,923 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:14,923 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:14,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:14,924 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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 [2023-11-23 21:08:15,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:15,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:15,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:15,385 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:15,385 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:15,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-23 21:08:18,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:18,680 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:18,683 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-11-23 21:08:18,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/data/8cb41edb7/2df2c4fa9fb74535b15b91d9a8960383/FLAG12566d1fe [2023-11-23 21:08:18,717 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/data/8cb41edb7/2df2c4fa9fb74535b15b91d9a8960383 [2023-11-23 21:08:18,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:18,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:18,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:18,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:18,734 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:18,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:18" (1/1) ... [2023-11-23 21:08:18,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c139fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:18, skipping insertion in model container [2023-11-23 21:08:18,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:18" (1/1) ... [2023-11-23 21:08:18,779 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:18,980 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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-23 21:08:19,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:19,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:19,139 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_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-11-23 21:08:19,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:19,221 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:19,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19 WrapperNode [2023-11-23 21:08:19,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:19,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:19,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:19,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:19,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,327 INFO L138 Inliner]: procedures = 36, calls = 159, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 436 [2023-11-23 21:08:19,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:19,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:19,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:19,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:19,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:19,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:19,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:19,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:19,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (1/1) ... [2023-11-23 21:08:19,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:19,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:19,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:19,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 21:08:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-23 21:08:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:08:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-23 21:08:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-23 21:08:19,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 21:08:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-23 21:08:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-23 21:08:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-23 21:08:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 21:08:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-23 21:08:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 21:08:19,664 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:19,667 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:21,771 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:21,841 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:21,841 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:08:21,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:21 BoogieIcfgContainer [2023-11-23 21:08:21,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:21,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:21,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:21,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:21,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:18" (1/3) ... [2023-11-23 21:08:21,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5051c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:21, skipping insertion in model container [2023-11-23 21:08:21,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:19" (2/3) ... [2023-11-23 21:08:21,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5051c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:21, skipping insertion in model container [2023-11-23 21:08:21,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:21" (3/3) ... [2023-11-23 21:08:21,852 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-26.i [2023-11-23 21:08:21,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:21,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:08:21,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:21,952 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;@783c96ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:21,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:08:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:08:21,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:21,978 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:21,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:21,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:21,987 INFO L85 PathProgramCache]: Analyzing trace with hash 761162639, now seen corresponding path program 1 times [2023-11-23 21:08:22,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:22,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895154529] [2023-11-23 21:08:22,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:22,005 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 21:08:22,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:22,008 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:22,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:22,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:08:22,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-23 21:08:22,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:22,591 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895154529] [2023-11-23 21:08:22,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895154529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:22,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:22,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:22,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522068083] [2023-11-23 21:08:22,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:22,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:08:22,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:22,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:08:22,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:08:22,647 INFO L87 Difference]: Start difference. First operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:08:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:23,000 INFO L93 Difference]: Finished difference Result 169 states and 261 transitions. [2023-11-23 21:08:23,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:08:23,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-23 21:08:23,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:23,012 INFO L225 Difference]: With dead ends: 169 [2023-11-23 21:08:23,013 INFO L226 Difference]: Without dead ends: 84 [2023-11-23 21:08:23,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:08:23,021 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:23,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:08:23,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-23 21:08:23,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-23 21:08:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 73 states have internal predecessors, (104), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:23,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 122 transitions. [2023-11-23 21:08:23,069 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 122 transitions. Word has length 84 [2023-11-23 21:08:23,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:23,070 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 122 transitions. [2023-11-23 21:08:23,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:08:23,071 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 122 transitions. [2023-11-23 21:08:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:08:23,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:23,077 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:23,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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)] Ended with exit code 0 [2023-11-23 21:08:23,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:23,286 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:23,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:23,287 INFO L85 PathProgramCache]: Analyzing trace with hash -67682943, now seen corresponding path program 1 times [2023-11-23 21:08:23,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:23,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376075257] [2023-11-23 21:08:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:23,288 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 21:08:23,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:23,290 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:23,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:23,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:23,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-23 21:08:23,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:23,861 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:23,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376075257] [2023-11-23 21:08:23,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376075257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:23,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:23,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:08:23,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867179154] [2023-11-23 21:08:23,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:23,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:08:23,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:23,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:08:23,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:08:23,866 INFO L87 Difference]: Start difference. First operand 84 states and 122 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:08:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:24,309 INFO L93 Difference]: Finished difference Result 173 states and 252 transitions. [2023-11-23 21:08:24,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:08:24,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-23 21:08:24,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:24,314 INFO L225 Difference]: With dead ends: 173 [2023-11-23 21:08:24,315 INFO L226 Difference]: Without dead ends: 90 [2023-11-23 21:08:24,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:08:24,317 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 10 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:24,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 346 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:08:24,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-23 21:08:24,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2023-11-23 21:08:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 75 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:24,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-11-23 21:08:24,337 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 84 [2023-11-23 21:08:24,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:24,337 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-11-23 21:08:24,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:08:24,338 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-11-23 21:08:24,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:08:24,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:24,348 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:24,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:24,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:24,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:24,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:24,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1976140733, now seen corresponding path program 1 times [2023-11-23 21:08:24,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:24,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380869063] [2023-11-23 21:08:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:24,551 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 21:08:24,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:24,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:24,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:25,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:25,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:25,052 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 21:08:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:08:25,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:25,095 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:25,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380869063] [2023-11-23 21:08:25,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380869063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:25,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:25,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:08:25,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726986643] [2023-11-23 21:08:25,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:25,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:25,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:25,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:25,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:25,098 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:25,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:25,538 INFO L93 Difference]: Finished difference Result 171 states and 247 transitions. [2023-11-23 21:08:25,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:25,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-23 21:08:25,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:25,541 INFO L225 Difference]: With dead ends: 171 [2023-11-23 21:08:25,541 INFO L226 Difference]: Without dead ends: 86 [2023-11-23 21:08:25,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:25,544 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:25,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 229 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:08:25,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-23 21:08:25,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-23 21:08:25,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:25,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 123 transitions. [2023-11-23 21:08:25,556 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 123 transitions. Word has length 84 [2023-11-23 21:08:25,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:25,557 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 123 transitions. [2023-11-23 21:08:25,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:25,558 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 123 transitions. [2023-11-23 21:08:25,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:08:25,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:25,560 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:25,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:25,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:25,775 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:25,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:25,776 INFO L85 PathProgramCache]: Analyzing trace with hash 629882821, now seen corresponding path program 1 times [2023-11-23 21:08:25,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:25,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17666005] [2023-11-23 21:08:25,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:25,777 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 21:08:25,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:25,779 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:25,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:26,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:08:26,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:26,251 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:08:26,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:26,251 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:26,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17666005] [2023-11-23 21:08:26,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17666005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:26,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:26,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:08:26,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173033356] [2023-11-23 21:08:26,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:26,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:08:26,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:26,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:08:26,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:08:26,263 INFO L87 Difference]: Start difference. First operand 86 states and 123 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:26,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:26,835 INFO L93 Difference]: Finished difference Result 180 states and 257 transitions. [2023-11-23 21:08:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:08:26,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-23 21:08:26,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:26,838 INFO L225 Difference]: With dead ends: 180 [2023-11-23 21:08:26,838 INFO L226 Difference]: Without dead ends: 95 [2023-11-23 21:08:26,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:08:26,840 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 10 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:26,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 444 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:08:26,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-23 21:08:26,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2023-11-23 21:08:26,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:26,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2023-11-23 21:08:26,853 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 84 [2023-11-23 21:08:26,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:26,853 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2023-11-23 21:08:26,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2023-11-23 21:08:26,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:08:26,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:26,856 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:26,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:27,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:27,066 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:27,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:27,066 INFO L85 PathProgramCache]: Analyzing trace with hash 629942403, now seen corresponding path program 1 times [2023-11-23 21:08:27,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:27,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103184865] [2023-11-23 21:08:27,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:27,068 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 21:08:27,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:27,069 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:27,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:27,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:08:27,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:27,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2023-11-23 21:08:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-23 21:08:27,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:27,633 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:27,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103184865] [2023-11-23 21:08:27,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103184865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:27,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:27,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:08:27,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423021319] [2023-11-23 21:08:27,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:27,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:08:27,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:27,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:08:27,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:08:27,637 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:08:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:29,154 INFO L93 Difference]: Finished difference Result 183 states and 259 transitions. [2023-11-23 21:08:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:08:29,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-23 21:08:29,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:29,159 INFO L225 Difference]: With dead ends: 183 [2023-11-23 21:08:29,159 INFO L226 Difference]: Without dead ends: 94 [2023-11-23 21:08:29,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:08:29,161 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 129 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:29,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 346 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 21:08:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-23 21:08:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2023-11-23 21:08:29,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 77 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:29,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2023-11-23 21:08:29,171 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 84 [2023-11-23 21:08:29,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:29,172 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2023-11-23 21:08:29,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:08:29,172 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2023-11-23 21:08:29,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 21:08:29,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:29,174 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:29,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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)] Ended with exit code 0 [2023-11-23 21:08:29,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:29,384 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:29,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash -198303173, now seen corresponding path program 1 times [2023-11-23 21:08:29,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:29,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560845084] [2023-11-23 21:08:29,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:29,386 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 21:08:29,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:29,388 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:29,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:29,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:08:29,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:29,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-23 21:08:30,060 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 21:08:30,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:30,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-23 21:08:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 21:08:30,340 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:30,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560845084] [2023-11-23 21:08:30,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560845084] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:30,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [988801719] [2023-11-23 21:08:30,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:30,341 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:30,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:08:30,346 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:08:30,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-23 21:08:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:31,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:08:31,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:31,722 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 21:08:32,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-23 21:08:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 21:08:32,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:32,557 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 21:08:32,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [988801719] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:32,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390560355] [2023-11-23 21:08:32,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:32,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:32,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:32,564 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:08:32,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 21:08:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:32,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:32,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:32,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-11-23 21:08:32,970 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:08:32,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:32,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390560355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:32,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-23 21:08:32,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-11-23 21:08:32,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519740939] [2023-11-23 21:08:32,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:32,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:32,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:32,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:32,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:08:32,973 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:33,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:33,446 INFO L93 Difference]: Finished difference Result 173 states and 245 transitions. [2023-11-23 21:08:33,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:33,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2023-11-23 21:08:33,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:33,449 INFO L225 Difference]: With dead ends: 173 [2023-11-23 21:08:33,449 INFO L226 Difference]: Without dead ends: 86 [2023-11-23 21:08:33,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:08:33,451 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:33,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:08:33,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-23 21:08:33,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-23 21:08:33,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:33,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2023-11-23 21:08:33,462 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 86 [2023-11-23 21:08:33,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:33,462 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2023-11-23 21:08:33,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:33,463 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2023-11-23 21:08:33,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-23 21:08:33,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:33,465 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:33,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:33,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:33,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:34,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:34,083 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:34,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:34,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1917060794, now seen corresponding path program 1 times [2023-11-23 21:08:34,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:34,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127669839] [2023-11-23 21:08:34,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:34,085 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 21:08:34,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:34,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:34,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-23 21:08:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:34,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:34,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:34,521 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 21:08:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:08:34,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:34,542 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:34,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127669839] [2023-11-23 21:08:34,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127669839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:34,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:34,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:08:34,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166279694] [2023-11-23 21:08:34,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:34,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:34,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:34,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:34,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:34,545 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:34,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:34,959 INFO L93 Difference]: Finished difference Result 171 states and 241 transitions. [2023-11-23 21:08:34,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:34,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-11-23 21:08:34,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:34,961 INFO L225 Difference]: With dead ends: 171 [2023-11-23 21:08:34,962 INFO L226 Difference]: Without dead ends: 86 [2023-11-23 21:08:34,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:34,963 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 12 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:34,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 208 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:08:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-23 21:08:34,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-23 21:08:34,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.36) internal successors, (102), 75 states have internal predecessors, (102), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:34,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2023-11-23 21:08:34,972 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 120 transitions. Word has length 91 [2023-11-23 21:08:34,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:34,973 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 120 transitions. [2023-11-23 21:08:34,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:34,973 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 120 transitions. [2023-11-23 21:08:34,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-23 21:08:34,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:34,975 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:34,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:35,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:35,187 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:35,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:35,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2051074300, now seen corresponding path program 1 times [2023-11-23 21:08:35,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:35,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879963223] [2023-11-23 21:08:35,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:35,188 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 21:08:35,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:35,189 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:35,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:35,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:08:35,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:35,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-23 21:08:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 21:08:35,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:36,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-23 21:08:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 21:08:36,164 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:36,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879963223] [2023-11-23 21:08:36,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879963223] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:36,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [236937986] [2023-11-23 21:08:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:36,164 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:36,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:08:36,165 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:08:36,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-23 21:08:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:37,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:08:37,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:37,413 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 21:08:37,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-23 21:08:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 21:08:37,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 21:08:38,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [236937986] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:38,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192440970] [2023-11-23 21:08:38,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:38,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:38,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:38,147 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:08:38,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 21:08:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:38,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:38,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:38,473 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 21:08:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:08:38,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:38,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192440970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:38,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-23 21:08:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-11-23 21:08:38,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522914330] [2023-11-23 21:08:38,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:38,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:38,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:38,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:08:38,551 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:39,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:39,029 INFO L93 Difference]: Finished difference Result 172 states and 240 transitions. [2023-11-23 21:08:39,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:39,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-11-23 21:08:39,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:39,031 INFO L225 Difference]: With dead ends: 172 [2023-11-23 21:08:39,031 INFO L226 Difference]: Without dead ends: 87 [2023-11-23 21:08:39,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:08:39,033 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 2 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:39,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 216 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:08:39,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-23 21:08:39,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2023-11-23 21:08:39,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2023-11-23 21:08:39,041 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 91 [2023-11-23 21:08:39,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:39,042 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2023-11-23 21:08:39,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:39,042 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2023-11-23 21:08:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-23 21:08:39,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:39,044 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:39,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:39,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:39,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:39,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:39,657 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:39,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:39,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1426244546, now seen corresponding path program 1 times [2023-11-23 21:08:39,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:39,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116269577] [2023-11-23 21:08:39,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:39,659 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 21:08:39,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:39,661 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:39,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-23 21:08:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:40,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:08:40,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:40,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-23 21:08:40,423 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 21:08:40,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:40,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-23 21:08:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 21:08:40,723 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:40,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116269577] [2023-11-23 21:08:40,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116269577] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:40,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1619004465] [2023-11-23 21:08:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:40,724 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:40,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:08:40,725 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:08:40,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-23 21:08:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:42,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 21:08:42,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:42,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-23 21:08:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 21:08:42,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:43,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-11-23 21:08:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 21:08:43,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1619004465] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:43,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710947678] [2023-11-23 21:08:43,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:43,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:43,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:43,107 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:08:43,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 21:08:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:43,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:08:43,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:43,625 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 21:08:43,720 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:08:43,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:43,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710947678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:43,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-23 21:08:43,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-11-23 21:08:43,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147480986] [2023-11-23 21:08:43,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:43,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:43,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:43,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:43,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:08:43,723 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:44,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:44,184 INFO L93 Difference]: Finished difference Result 171 states and 237 transitions. [2023-11-23 21:08:44,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:44,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-11-23 21:08:44,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:44,186 INFO L225 Difference]: With dead ends: 171 [2023-11-23 21:08:44,186 INFO L226 Difference]: Without dead ends: 86 [2023-11-23 21:08:44,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:08:44,187 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 8 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:44,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 208 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:08:44,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-23 21:08:44,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-23 21:08:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3333333333333333) internal successors, (100), 75 states have internal predecessors, (100), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-11-23 21:08:44,196 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 91 [2023-11-23 21:08:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:44,196 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-11-23 21:08:44,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:44,197 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-11-23 21:08:44,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-23 21:08:44,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:44,198 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:44,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-11-23 21:08:44,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-23 21:08:44,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:44,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:44,808 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:44,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:44,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1645099264, now seen corresponding path program 1 times [2023-11-23 21:08:44,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:44,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749016332] [2023-11-23 21:08:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:44,810 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 21:08:44,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:44,811 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:44,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 (17)] Waiting until timeout for monitored process [2023-11-23 21:08:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:45,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:08:45,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:45,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-11-23 21:08:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 21:08:45,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:45,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-11-23 21:08:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 21:08:45,807 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:45,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749016332] [2023-11-23 21:08:45,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749016332] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:45,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1412039381] [2023-11-23 21:08:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:45,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:45,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:08:45,809 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:08:45,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-23 21:08:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:47,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:08:47,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:47,435 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 21:08:47,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-23 21:08:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 21:08:47,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:48,291 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 21:08:48,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1412039381] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:48,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523184964] [2023-11-23 21:08:48,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:48,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:48,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:48,293 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:08:48,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 21:08:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:48,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:08:48,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:49,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-11-23 21:08:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 21:08:49,053 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:49,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-11-23 21:08:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 21:08:49,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523184964] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:49,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 21:08:49,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10, 9, 10, 9] total 20 [2023-11-23 21:08:49,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894600994] [2023-11-23 21:08:49,230 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 21:08:49,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-23 21:08:49,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:49,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 21:08:49,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:08:49,232 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 20 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-23 21:08:52,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:52,640 INFO L93 Difference]: Finished difference Result 186 states and 253 transitions. [2023-11-23 21:08:52,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 21:08:52,642 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 91 [2023-11-23 21:08:52,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:52,643 INFO L225 Difference]: With dead ends: 186 [2023-11-23 21:08:52,643 INFO L226 Difference]: Without dead ends: 88 [2023-11-23 21:08:52,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2023-11-23 21:08:52,645 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 124 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:52,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 442 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-23 21:08:52,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-23 21:08:52,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2023-11-23 21:08:52,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 75 states have internal predecessors, (98), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:52,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 116 transitions. [2023-11-23 21:08:52,655 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 116 transitions. Word has length 91 [2023-11-23 21:08:52,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:52,655 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 116 transitions. [2023-11-23 21:08:52,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-23 21:08:52,656 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 116 transitions. [2023-11-23 21:08:52,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-23 21:08:52,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:52,658 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:52,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 (17)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:52,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:53,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:53,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:53,277 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:53,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:53,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1618033662, now seen corresponding path program 1 times [2023-11-23 21:08:53,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:53,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094049343] [2023-11-23 21:08:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:53,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:53,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:53,280 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:53,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 (20)] Waiting until timeout for monitored process [2023-11-23 21:08:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:53,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:53,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:53,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-11-23 21:08:53,927 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:08:53,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:53,927 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:53,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094049343] [2023-11-23 21:08:53,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1094049343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:53,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:53,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:08:53,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805844232] [2023-11-23 21:08:53,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:53,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:53,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:53,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:53,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:53,931 INFO L87 Difference]: Start difference. First operand 86 states and 116 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:54,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:54,588 INFO L93 Difference]: Finished difference Result 169 states and 228 transitions. [2023-11-23 21:08:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:54,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-11-23 21:08:54,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:54,591 INFO L225 Difference]: With dead ends: 169 [2023-11-23 21:08:54,591 INFO L226 Difference]: Without dead ends: 84 [2023-11-23 21:08:54,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:54,593 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 36 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:54,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 170 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:08:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-23 21:08:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-23 21:08:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 73 states have internal predecessors, (94), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 112 transitions. [2023-11-23 21:08:54,602 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 112 transitions. Word has length 91 [2023-11-23 21:08:54,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:54,603 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 112 transitions. [2023-11-23 21:08:54,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:54,604 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 112 transitions. [2023-11-23 21:08:54,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 21:08:54,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:54,606 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:54,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 (20)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:54,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:54,819 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:54,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:54,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1552538331, now seen corresponding path program 1 times [2023-11-23 21:08:54,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:54,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476811670] [2023-11-23 21:08:54,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:54,820 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 21:08:54,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:54,821 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:54,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 (21)] Waiting until timeout for monitored process [2023-11-23 21:08:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:55,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:55,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:55,445 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 21:08:55,475 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:08:55,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:55,475 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:55,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476811670] [2023-11-23 21:08:55,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476811670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:55,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:55,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:08:55,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850088589] [2023-11-23 21:08:55,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:55,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:55,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:55,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:55,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:55,478 INFO L87 Difference]: Start difference. First operand 84 states and 112 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:55,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:55,975 INFO L93 Difference]: Finished difference Result 167 states and 223 transitions. [2023-11-23 21:08:55,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:55,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-23 21:08:55,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:55,978 INFO L225 Difference]: With dead ends: 167 [2023-11-23 21:08:55,978 INFO L226 Difference]: Without dead ends: 84 [2023-11-23 21:08:55,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:55,979 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 34 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:55,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 169 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:08:55,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-23 21:08:55,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-23 21:08:55,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:55,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2023-11-23 21:08:55,988 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 96 [2023-11-23 21:08:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:55,989 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2023-11-23 21:08:55,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2023-11-23 21:08:55,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 21:08:55,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:55,991 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:56,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 (21)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:56,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:56,205 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:56,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:56,205 INFO L85 PathProgramCache]: Analyzing trace with hash 748284259, now seen corresponding path program 1 times [2023-11-23 21:08:56,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:56,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182221033] [2023-11-23 21:08:56,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:56,206 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 21:08:56,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:56,207 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:56,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 (22)] Waiting until timeout for monitored process [2023-11-23 21:08:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:56,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:56,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:56,945 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 21:08:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:08:56,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:56,970 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:56,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182221033] [2023-11-23 21:08:56,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182221033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:56,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:56,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:08:56,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26070456] [2023-11-23 21:08:56,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:56,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:56,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:56,973 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:57,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:57,607 INFO L93 Difference]: Finished difference Result 187 states and 248 transitions. [2023-11-23 21:08:57,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:57,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-23 21:08:57,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:57,609 INFO L225 Difference]: With dead ends: 187 [2023-11-23 21:08:57,609 INFO L226 Difference]: Without dead ends: 104 [2023-11-23 21:08:57,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:57,611 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 24 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:57,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 199 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:08:57,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-23 21:08:57,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 84. [2023-11-23 21:08:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 73 states have internal predecessors, (92), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:08:57,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 110 transitions. [2023-11-23 21:08:57,619 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 110 transitions. Word has length 96 [2023-11-23 21:08:57,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:57,620 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 110 transitions. [2023-11-23 21:08:57,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-23 21:08:57,621 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 110 transitions. [2023-11-23 21:08:57,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 21:08:57,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:57,622 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:57,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 (22)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:57,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:57,835 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:57,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:57,836 INFO L85 PathProgramCache]: Analyzing trace with hash -262832991, now seen corresponding path program 1 times [2023-11-23 21:08:57,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:57,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992215997] [2023-11-23 21:08:57,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:57,837 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 21:08:57,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:57,838 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 21:08:57,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f9e45a7-ead3-4ae4-9eb9-e5763f46dbee/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 (23)] Waiting until timeout for monitored process