./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje --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 60e0d367a188d63fa8b46fcc4be9e9d24b19690e82d361011ef9ebf2c61f53ca --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:51:43,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:51:43,305 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:51:43,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:51:43,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:51:43,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:51:43,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:51:43,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:51:43,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:51:43,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:51:43,360 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:51:43,361 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:51:43,361 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:51:43,363 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:51:43,366 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:51:43,367 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:51:43,367 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:51:43,367 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:51:43,368 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:51:43,368 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:51:43,368 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:51:43,370 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:51:43,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:51:43,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:51:43,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:51:43,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:51:43,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:51:43,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:51:43,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:51:43,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:51:43,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:51:43,378 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:51:43,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:51:43,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:51:43,381 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:51:43,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:51:43,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:51:43,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:51:43,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:51:43,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:51:43,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:51:43,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:51:43,384 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:51:43,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:51:43,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:51:43,386 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:51:43,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:51:43,386 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_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60e0d367a188d63fa8b46fcc4be9e9d24b19690e82d361011ef9ebf2c61f53ca [2024-11-09 06:51:43,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:51:43,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:51:43,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:51:43,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:51:43,717 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:51:43,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i Unable to find full path for "g++" [2024-11-09 06:51:45,866 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:51:46,099 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:51:46,100 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i [2024-11-09 06:51:46,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/data/597cb7ff0/5a63b3fe945d427782b13f81970bdcc2/FLAG043c5a8b0 [2024-11-09 06:51:46,458 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/data/597cb7ff0/5a63b3fe945d427782b13f81970bdcc2 [2024-11-09 06:51:46,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:51:46,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:51:46,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:46,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:51:46,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:51:46,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377d806a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46, skipping insertion in model container [2024-11-09 06:51:46,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,516 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:51:46,689 WARN L250 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_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i[916,929] [2024-11-09 06:51:46,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:46,767 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:51:46,781 WARN L250 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_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i[916,929] [2024-11-09 06:51:46,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:46,841 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:51:46,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46 WrapperNode [2024-11-09 06:51:46,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:46,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:46,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:51:46,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:51:46,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,927 INFO L138 Inliner]: procedures = 29, calls = 135, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 408 [2024-11-09 06:51:46,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:46,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:51:46,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:51:46,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:51:46,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,976 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:51:46,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:51:46,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:51:46,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:51:46,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (1/1) ... [2024-11-09 06:51:46,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:51:47,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:51:47,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:51:47,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:51:47,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:51:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 06:51:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:51:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 06:51:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:51:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 06:51:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:51:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:51:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:51:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:51:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:51:47,292 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:51:47,294 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:51:47,917 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-09 06:51:47,918 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:51:48,583 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:51:48,584 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:51:48,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:48 BoogieIcfgContainer [2024-11-09 06:51:48,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:51:48,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:51:48,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:51:48,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:51:48,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:51:46" (1/3) ... [2024-11-09 06:51:48,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728a69b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:48, skipping insertion in model container [2024-11-09 06:51:48,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:46" (2/3) ... [2024-11-09 06:51:48,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728a69b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:48, skipping insertion in model container [2024-11-09 06:51:48,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:48" (3/3) ... [2024-11-09 06:51:48,599 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-67.i [2024-11-09 06:51:48,623 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:51:48,623 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:51:48,713 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:51:48,725 INFO L333 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, 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;@1186102c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:51:48,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:51:48,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:51:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 06:51:48,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:51:48,741 INFO L215 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:48,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:51:48,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:48,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1000627362, now seen corresponding path program 1 times [2024-11-09 06:51:48,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:51:48,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129312503] [2024-11-09 06:51:48,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:48,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:51:50,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203323521] [2024-11-09 06:51:50,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:50,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:50,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:51:50,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:50,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:51:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:51:51,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:51:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:51:52,296 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:51:52,300 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:51:52,301 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:51:52,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:51:52,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 06:51:52,508 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:51:52,615 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:51:52,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:51:52 BoogieIcfgContainer [2024-11-09 06:51:52,618 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:51:52,619 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:51:52,619 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:51:52,619 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:51:52,620 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:48" (3/4) ... [2024-11-09 06:51:52,623 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:51:52,624 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:51:52,625 INFO L158 Benchmark]: Toolchain (without parser) took 6162.14ms. Allocated memory was 155.2MB in the beginning and 247.5MB in the end (delta: 92.3MB). Free memory was 116.3MB in the beginning and 190.2MB in the end (delta: -73.9MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-11-09 06:51:52,626 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:51:52,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.49ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 100.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:51:52,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.14ms. Allocated memory is still 155.2MB. Free memory was 100.1MB in the beginning and 96.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:51:52,628 INFO L158 Benchmark]: Boogie Preprocessor took 55.85ms. Allocated memory is still 155.2MB. Free memory was 96.5MB in the beginning and 93.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:51:52,629 INFO L158 Benchmark]: RCFGBuilder took 1599.18ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 93.5MB in the beginning and 103.3MB in the end (delta: -9.8MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2024-11-09 06:51:52,629 INFO L158 Benchmark]: TraceAbstraction took 4030.13ms. Allocated memory was 201.3MB in the beginning and 247.5MB in the end (delta: 46.1MB). Free memory was 103.3MB in the beginning and 191.3MB in the end (delta: -88.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:51:52,630 INFO L158 Benchmark]: Witness Printer took 5.36ms. Allocated memory is still 247.5MB. Free memory was 191.3MB in the beginning and 190.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:51:52,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.49ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 100.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.14ms. Allocated memory is still 155.2MB. Free memory was 100.1MB in the beginning and 96.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.85ms. Allocated memory is still 155.2MB. Free memory was 96.5MB in the beginning and 93.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1599.18ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 93.5MB in the beginning and 103.3MB in the end (delta: -9.8MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4030.13ms. Allocated memory was 201.3MB in the beginning and 247.5MB in the end (delta: 46.1MB). Free memory was 103.3MB in the beginning and 191.3MB in the end (delta: -88.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.36ms. Allocated memory is still 247.5MB. Free memory was 191.3MB in the beginning and 190.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of shiftRight at line 50. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] double double_Array_0[1] = { 25.875 }; [L28-L30] float float_Array_0[2] = { 0.9, 15.125 }; [L31-L33] signed long int signed_long_int_Array_0[2] = { -4, 50 }; [L34-L36] signed short int signed_short_int_Array_0[3] = { 256, -64, 2 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[3] = { 256, 50, 128 }; [L40] signed long int last_1_signed_long_int_Array_0_1_ = 50; [L41] signed short int last_1_signed_short_int_Array_0_2_ = 2; [L42] unsigned short int last_1_unsigned_short_int_Array_0_2_ = 128; [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] CALL updateLastVariables() [L95] EXPR signed_long_int_Array_0[1] [L95] last_1_signed_long_int_Array_0_1_ = signed_long_int_Array_0[1] [L96] EXPR signed_short_int_Array_0[2] [L96] last_1_signed_short_int_Array_0_2_ = signed_short_int_Array_0[2] [L97] EXPR unsigned_short_int_Array_0[2] [L97] last_1_unsigned_short_int_Array_0_2_ = unsigned_short_int_Array_0[2] [L107] RET updateLastVariables() [L108] CALL updateVariables() [L75] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] float_Array_0[0] = __VERIFIER_nondet_float() [L79] EXPR float_Array_0[0] [L79] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L79] EXPR float_Array_0[0] [L79] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L79] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L79] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] signed_long_int_Array_0[0] = __VERIFIER_nondet_long() [L81] EXPR signed_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] CALL assume_abort_if_not(signed_long_int_Array_0[0] >= -2147483648) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(signed_long_int_Array_0[0] >= -2147483648) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] EXPR signed_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] CALL assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] EXPR signed_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] CALL assume_abort_if_not(signed_long_int_Array_0[0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(signed_long_int_Array_0[0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L85] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -16383) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L87] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L88] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= -16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(signed_short_int_Array_0[1] >= -16383) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L90] unsigned_short_int_Array_0[0] = __VERIFIER_nondet_ushort() [L91] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L91] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L92] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L92] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(unsigned_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] RET updateVariables() [L109] CALL step() [L46] COND TRUE ! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_) [L47] EXPR signed_short_int_Array_0[1] [L47] EXPR signed_short_int_Array_0[0] [L47] signed_short_int_Array_0[2] = (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]) [L49] EXPR signed_short_int_Array_0[1] [L49] signed long int stepLocal_0 = 1 * signed_short_int_Array_0[1]; [L50] EXPR signed_short_int_Array_0[2] [L50] EXPR signed_short_int_Array_0[0] [L50] EXPR signed_short_int_Array_0[2] >> signed_short_int_Array_0[0] [L50] COND FALSE !((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > stepLocal_0) [L53] EXPR unsigned_short_int_Array_0[0] [L53] unsigned_short_int_Array_0[2] = unsigned_short_int_Array_0[0] [L55] EXPR float_Array_0[0] [L55] float_Array_0[1] = float_Array_0[0] [L56] EXPR float_Array_0[0] [L56] double_Array_0[0] = float_Array_0[0] [L57] EXPR unsigned_short_int_Array_0[0] [L57] unsigned_short_int_Array_0[1] = unsigned_short_int_Array_0[0] [L58] EXPR signed_short_int_Array_0[1] [L58] EXPR signed_long_int_Array_0[0] [L58] signed long int stepLocal_2 = signed_short_int_Array_0[1] / signed_long_int_Array_0[0]; [L59] EXPR unsigned_short_int_Array_0[0] [L59] unsigned short int stepLocal_1 = unsigned_short_int_Array_0[0]; [L60] BOOL_unsigned_char_Array_0[0] [L60] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L63] EXPR unsigned_short_int_Array_0[1] [L63] COND TRUE unsigned_short_int_Array_0[1] > stepLocal_2 [L64] EXPR unsigned_short_int_Array_0[2] [L64] COND FALSE !(stepLocal_1 > unsigned_short_int_Array_0[2]) [L67] EXPR unsigned_short_int_Array_0[0] [L67] signed_long_int_Array_0[1] = (last_1_signed_long_int_Array_0_1_ - unsigned_short_int_Array_0[0]) [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR (! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_)) ? (signed_short_int_Array_0[2] == ((signed short int) (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]))) : 1 [L100] EXPR signed_short_int_Array_0[2] [L100] EXPR signed_short_int_Array_0[1] [L100] EXPR signed_short_int_Array_0[0] [L100] EXPR (! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_)) ? (signed_short_int_Array_0[2] == ((signed short int) (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]))) : 1 [L100] EXPR ((! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_)) ? (signed_short_int_Array_0[2] == ((signed short int) (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]))) : 1) && (((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > (1 * signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (((((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0))))) : (unsigned_short_int_Array_0[2] == ((unsigned short int) unsigned_short_int_Array_0[0]))) [L100] EXPR signed_short_int_Array_0[2] [L100] EXPR signed_short_int_Array_0[0] [L100] EXPR signed_short_int_Array_0[2] >> signed_short_int_Array_0[0] [L100] EXPR signed_short_int_Array_0[1] [L100] EXPR ((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > (1 * signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (((((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0))))) : (unsigned_short_int_Array_0[2] == ((unsigned short int) unsigned_short_int_Array_0[0])) [L100] EXPR unsigned_short_int_Array_0[2] [L100] EXPR unsigned_short_int_Array_0[0] [L100] EXPR (((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0) [L100] EXPR unsigned_short_int_Array_0[0] [L100] EXPR (((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0) [L100] EXPR ((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > (1 * signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (((((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0))))) : (unsigned_short_int_Array_0[2] == ((unsigned short int) unsigned_short_int_Array_0[0])) [L100] EXPR ((! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_)) ? (signed_short_int_Array_0[2] == ((signed short int) (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]))) : 1) && (((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > (1 * signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (((((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0))))) : (unsigned_short_int_Array_0[2] == ((unsigned short int) unsigned_short_int_Array_0[0]))) [L100] EXPR (((! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_)) ? (signed_short_int_Array_0[2] == ((signed short int) (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]))) : 1) && (((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > (1 * signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (((((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0))))) : (unsigned_short_int_Array_0[2] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && (BOOL_unsigned_char_Array_0[0] ? (signed_long_int_Array_0[1] == ((signed long int) ((((unsigned_short_int_Array_0[2]) < (last_1_signed_long_int_Array_0_1_)) ? (unsigned_short_int_Array_0[2]) : (last_1_signed_long_int_Array_0_1_))))) : ((unsigned_short_int_Array_0[1] > (signed_short_int_Array_0[1] / signed_long_int_Array_0[0])) ? ((unsigned_short_int_Array_0[0] > unsigned_short_int_Array_0[2]) ? (signed_long_int_Array_0[1] == ((signed long int) ((((signed_short_int_Array_0[1]) < (100)) ? (signed_short_int_Array_0[1]) : (100))))) : (signed_long_int_Array_0[1] == ((signed long int) (last_1_signed_long_int_Array_0_1_ - unsigned_short_int_Array_0[0])))) : (signed_long_int_Array_0[1] == ((signed long int) (unsigned_short_int_Array_0[2] + signed_short_int_Array_0[0]))))) [L100] EXPR ((((! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_)) ? (signed_short_int_Array_0[2] == ((signed short int) (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]))) : 1) && (((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > (1 * signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (((((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0))))) : (unsigned_short_int_Array_0[2] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && (BOOL_unsigned_char_Array_0[0] ? (signed_long_int_Array_0[1] == ((signed long int) ((((unsigned_short_int_Array_0[2]) < (last_1_signed_long_int_Array_0_1_)) ? (unsigned_short_int_Array_0[2]) : (last_1_signed_long_int_Array_0_1_))))) : ((unsigned_short_int_Array_0[1] > (signed_short_int_Array_0[1] / signed_long_int_Array_0[0])) ? ((unsigned_short_int_Array_0[0] > unsigned_short_int_Array_0[2]) ? (signed_long_int_Array_0[1] == ((signed long int) ((((signed_short_int_Array_0[1]) < (100)) ? (signed_short_int_Array_0[1]) : (100))))) : (signed_long_int_Array_0[1] == ((signed long int) (last_1_signed_long_int_Array_0_1_ - unsigned_short_int_Array_0[0])))) : (signed_long_int_Array_0[1] == ((signed long int) (unsigned_short_int_Array_0[2] + signed_short_int_Array_0[0])))))) && (float_Array_0[1] == ((float) float_Array_0[0])) [L100] EXPR (((((! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_)) ? (signed_short_int_Array_0[2] == ((signed short int) (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]))) : 1) && (((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > (1 * signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (((((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0))))) : (unsigned_short_int_Array_0[2] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && (BOOL_unsigned_char_Array_0[0] ? (signed_long_int_Array_0[1] == ((signed long int) ((((unsigned_short_int_Array_0[2]) < (last_1_signed_long_int_Array_0_1_)) ? (unsigned_short_int_Array_0[2]) : (last_1_signed_long_int_Array_0_1_))))) : ((unsigned_short_int_Array_0[1] > (signed_short_int_Array_0[1] / signed_long_int_Array_0[0])) ? ((unsigned_short_int_Array_0[0] > unsigned_short_int_Array_0[2]) ? (signed_long_int_Array_0[1] == ((signed long int) ((((signed_short_int_Array_0[1]) < (100)) ? (signed_short_int_Array_0[1]) : (100))))) : (signed_long_int_Array_0[1] == ((signed long int) (last_1_signed_long_int_Array_0_1_ - unsigned_short_int_Array_0[0])))) : (signed_long_int_Array_0[1] == ((signed long int) (unsigned_short_int_Array_0[2] + signed_short_int_Array_0[0])))))) && (float_Array_0[1] == ((float) float_Array_0[0]))) && (double_Array_0[0] == ((double) float_Array_0[0])) [L100] EXPR ((((((! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_)) ? (signed_short_int_Array_0[2] == ((signed short int) (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]))) : 1) && (((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > (1 * signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (((((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0))))) : (unsigned_short_int_Array_0[2] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && (BOOL_unsigned_char_Array_0[0] ? (signed_long_int_Array_0[1] == ((signed long int) ((((unsigned_short_int_Array_0[2]) < (last_1_signed_long_int_Array_0_1_)) ? (unsigned_short_int_Array_0[2]) : (last_1_signed_long_int_Array_0_1_))))) : ((unsigned_short_int_Array_0[1] > (signed_short_int_Array_0[1] / signed_long_int_Array_0[0])) ? ((unsigned_short_int_Array_0[0] > unsigned_short_int_Array_0[2]) ? (signed_long_int_Array_0[1] == ((signed long int) ((((signed_short_int_Array_0[1]) < (100)) ? (signed_short_int_Array_0[1]) : (100))))) : (signed_long_int_Array_0[1] == ((signed long int) (last_1_signed_long_int_Array_0_1_ - unsigned_short_int_Array_0[0])))) : (signed_long_int_Array_0[1] == ((signed long int) (unsigned_short_int_Array_0[2] + signed_short_int_Array_0[0])))))) && (float_Array_0[1] == ((float) float_Array_0[0]))) && (double_Array_0[0] == ((double) float_Array_0[0]))) && (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0])) [L100-L101] return ((((((! (last_1_unsigned_short_int_Array_0_2_ <= last_1_signed_short_int_Array_0_2_)) ? (signed_short_int_Array_0[2] == ((signed short int) (signed_short_int_Array_0[1] + signed_short_int_Array_0[0]))) : 1) && (((signed_short_int_Array_0[2] >> signed_short_int_Array_0[0]) > (1 * signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (((((42286 - unsigned_short_int_Array_0[0])) > (0)) ? ((42286 - unsigned_short_int_Array_0[0])) : (0))))) : (unsigned_short_int_Array_0[2] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && (BOOL_unsigned_char_Array_0[0] ? (signed_long_int_Array_0[1] == ((signed long int) ((((unsigned_short_int_Array_0[2]) < (last_1_signed_long_int_Array_0_1_)) ? (unsigned_short_int_Array_0[2]) : (last_1_signed_long_int_Array_0_1_))))) : ((unsigned_short_int_Array_0[1] > (signed_short_int_Array_0[1] / signed_long_int_Array_0[0])) ? ((unsigned_short_int_Array_0[0] > unsigned_short_int_Array_0[2]) ? (signed_long_int_Array_0[1] == ((signed long int) ((((signed_short_int_Array_0[1]) < (100)) ? (signed_short_int_Array_0[1]) : (100))))) : (signed_long_int_Array_0[1] == ((signed long int) (last_1_signed_long_int_Array_0_1_ - unsigned_short_int_Array_0[0])))) : (signed_long_int_Array_0[1] == ((signed long int) (unsigned_short_int_Array_0[2] + signed_short_int_Array_0[0])))))) && (float_Array_0[1] == ((float) float_Array_0[0]))) && (double_Array_0[0] == ((double) float_Array_0[0]))) && (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0])) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_signed_long_int_Array_0_1_=50, last_1_signed_short_int_Array_0_2_=2, last_1_unsigned_short_int_Array_0_2_=128, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 1, TraceHistogramMax: 12, 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=33occurred 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, 2.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 2 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 [2024-11-09 06:51:52,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje --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 60e0d367a188d63fa8b46fcc4be9e9d24b19690e82d361011ef9ebf2c61f53ca --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:51:55,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:51:55,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:51:55,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:51:55,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:51:55,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:51:55,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:51:55,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:51:55,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:51:55,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:51:55,420 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:51:55,420 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:51:55,421 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:51:55,421 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:51:55,423 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:51:55,424 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:51:55,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:51:55,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:51:55,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:51:55,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:51:55,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:51:55,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:51:55,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:51:55,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:51:55,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:51:55,433 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:51:55,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:51:55,437 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:51:55,437 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:51:55,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:51:55,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:51:55,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:51:55,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:51:55,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:51:55,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:51:55,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:51:55,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:51:55,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:51:55,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:51:55,443 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:51:55,444 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:51:55,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:51:55,447 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:51:55,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60e0d367a188d63fa8b46fcc4be9e9d24b19690e82d361011ef9ebf2c61f53ca [2024-11-09 06:51:55,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:51:55,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:51:55,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:51:55,948 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:51:55,949 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:51:55,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i Unable to find full path for "g++" [2024-11-09 06:51:58,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:51:58,652 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:51:58,653 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i [2024-11-09 06:51:58,664 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/data/f74e304fd/347d67a5c16d48a4891750c838275459/FLAG91c305999 [2024-11-09 06:51:58,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/data/f74e304fd/347d67a5c16d48a4891750c838275459 [2024-11-09 06:51:58,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:51:58,685 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:51:58,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:58,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:51:58,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:51:58,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:58" (1/1) ... [2024-11-09 06:51:58,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f85b134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:58, skipping insertion in model container [2024-11-09 06:51:58,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:58" (1/1) ... [2024-11-09 06:51:58,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:51:58,939 WARN L250 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_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i[916,929] [2024-11-09 06:51:59,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:59,095 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:51:59,116 WARN L250 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_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-67.i[916,929] [2024-11-09 06:51:59,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:59,285 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:51:59,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59 WrapperNode [2024-11-09 06:51:59,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:59,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:59,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:51:59,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:51:59,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,396 INFO L138 Inliner]: procedures = 39, calls = 135, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 391 [2024-11-09 06:51:59,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:59,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:51:59,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:51:59,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:51:59,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:51:59,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:51:59,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:51:59,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:51:59,485 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (1/1) ... [2024-11-09 06:51:59,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:51:59,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:51:59,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:51:59,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:51:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:51:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-09 06:51:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-09 06:51:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-09 06:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 06:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 06:51:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2024-11-09 06:51:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:51:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-09 06:51:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 06:51:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 06:51:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:51:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:51:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:51:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:51:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 06:51:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-09 06:51:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:51:59,748 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:51:59,751 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:52:00,792 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-11-09 06:52:00,793 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:52:00,820 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:52:00,820 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:52:00,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:52:00 BoogieIcfgContainer [2024-11-09 06:52:00,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:52:00,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:52:00,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:52:00,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:52:00,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:51:58" (1/3) ... [2024-11-09 06:52:00,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418eda1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:52:00, skipping insertion in model container [2024-11-09 06:52:00,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:59" (2/3) ... [2024-11-09 06:52:00,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418eda1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:52:00, skipping insertion in model container [2024-11-09 06:52:00,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:52:00" (3/3) ... [2024-11-09 06:52:00,834 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-67.i [2024-11-09 06:52:00,856 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:52:00,857 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:52:00,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:52:00,947 INFO L333 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, 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;@24a2e011, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:52:00,948 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:52:00,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 74 states have internal predecessors, (102), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:52:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:52:00,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:00,969 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:00,970 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:52:00,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:00,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1825584446, now seen corresponding path program 1 times [2024-11-09 06:52:00,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:00,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578907208] [2024-11-09 06:52:00,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:00,995 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 [2024-11-09 06:52:00,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:00,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:01,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:01,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:52:01,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-09 06:52:01,506 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:01,507 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:01,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578907208] [2024-11-09 06:52:01,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578907208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:01,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:01,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:52:01,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548831358] [2024-11-09 06:52:01,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:01,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:52:01,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:01,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:52:01,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:52:01,559 INFO L87 Difference]: Start difference. First operand has 88 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 74 states have internal predecessors, (102), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:52:01,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:01,610 INFO L93 Difference]: Finished difference Result 169 states and 258 transitions. [2024-11-09 06:52:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:52:01,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2024-11-09 06:52:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:01,627 INFO L225 Difference]: With dead ends: 169 [2024-11-09 06:52:01,627 INFO L226 Difference]: Without dead ends: 84 [2024-11-09 06:52:01,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:52:01,638 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:01,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:52:01,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-09 06:52:01,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-09 06:52:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 70 states have (on average 1.3571428571428572) internal successors, (95), 70 states have internal predecessors, (95), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:52:01,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 119 transitions. [2024-11-09 06:52:01,707 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 119 transitions. Word has length 103 [2024-11-09 06:52:01,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:01,708 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 119 transitions. [2024-11-09 06:52:01,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:52:01,710 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 119 transitions. [2024-11-09 06:52:01,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:52:01,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:01,717 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:01,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:01,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:01,918 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:52:01,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:01,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1107717038, now seen corresponding path program 1 times [2024-11-09 06:52:01,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:01,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871569910] [2024-11-09 06:52:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:01,921 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 [2024-11-09 06:52:01,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:01,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:01,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:02,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:52:02,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:02,431 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:52:02,431 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:02,431 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:02,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871569910] [2024-11-09 06:52:02,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871569910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:02,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:02,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:52:02,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37676598] [2024-11-09 06:52:02,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:02,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:52:02,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:02,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:52:02,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:52:02,437 INFO L87 Difference]: Start difference. First operand 84 states and 119 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:52:02,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:02,543 INFO L93 Difference]: Finished difference Result 170 states and 242 transitions. [2024-11-09 06:52:02,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:52:02,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-09 06:52:02,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:02,546 INFO L225 Difference]: With dead ends: 170 [2024-11-09 06:52:02,547 INFO L226 Difference]: Without dead ends: 89 [2024-11-09 06:52:02,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:52:02,550 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 1 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:02,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 440 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:52:02,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-09 06:52:02,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2024-11-09 06:52:02,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 74 states have (on average 1.337837837837838) internal successors, (99), 74 states have internal predecessors, (99), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:52:02,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2024-11-09 06:52:02,577 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 103 [2024-11-09 06:52:02,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:02,579 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-11-09 06:52:02,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:52:02,579 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2024-11-09 06:52:02,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:52:02,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:02,584 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:02,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:02,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:02,786 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:52:02,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:02,789 INFO L85 PathProgramCache]: Analyzing trace with hash -427658668, now seen corresponding path program 1 times [2024-11-09 06:52:02,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:02,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304373934] [2024-11-09 06:52:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:02,794 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 [2024-11-09 06:52:02,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:02,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:02,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:03,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:52:03,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:03,331 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:52:03,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:03,332 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:03,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304373934] [2024-11-09 06:52:03,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304373934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:03,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:03,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:52:03,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085610091] [2024-11-09 06:52:03,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:03,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:52:03,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:03,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:52:03,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:52:03,337 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:52:03,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:03,573 INFO L93 Difference]: Finished difference Result 176 states and 247 transitions. [2024-11-09 06:52:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:52:03,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-09 06:52:03,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:03,578 INFO L225 Difference]: With dead ends: 176 [2024-11-09 06:52:03,579 INFO L226 Difference]: Without dead ends: 91 [2024-11-09 06:52:03,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:52:03,581 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:03,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 540 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:52:03,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-09 06:52:03,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2024-11-09 06:52:03,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.3289473684210527) internal successors, (101), 76 states have internal predecessors, (101), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:52:03,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 125 transitions. [2024-11-09 06:52:03,594 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 125 transitions. Word has length 103 [2024-11-09 06:52:03,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:03,595 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 125 transitions. [2024-11-09 06:52:03,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:52:03,596 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 125 transitions. [2024-11-09 06:52:03,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:52:03,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:03,599 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:03,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:52:03,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:03,803 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:52:03,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:03,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1347348694, now seen corresponding path program 1 times [2024-11-09 06:52:03,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:03,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020764377] [2024-11-09 06:52:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:03,806 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 [2024-11-09 06:52:03,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:03,809 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:03,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:04,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:52:04,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:52:04,221 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:04,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:04,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020764377] [2024-11-09 06:52:04,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020764377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:04,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:04,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:52:04,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306864655] [2024-11-09 06:52:04,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:04,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:52:04,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:04,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:52:04,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:52:04,226 INFO L87 Difference]: Start difference. First operand 90 states and 125 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:52:04,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:04,420 INFO L93 Difference]: Finished difference Result 180 states and 251 transitions. [2024-11-09 06:52:04,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:52:04,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-09 06:52:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:04,424 INFO L225 Difference]: With dead ends: 180 [2024-11-09 06:52:04,424 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 06:52:04,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:52:04,426 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 1 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:04,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 641 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:52:04,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 06:52:04,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2024-11-09 06:52:04,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 78 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:52:04,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 127 transitions. [2024-11-09 06:52:04,437 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 127 transitions. Word has length 103 [2024-11-09 06:52:04,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:04,438 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 127 transitions. [2024-11-09 06:52:04,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:52:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 127 transitions. [2024-11-09 06:52:04,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:52:04,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:04,441 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:04,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:04,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:04,645 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:52:04,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:04,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1349195736, now seen corresponding path program 1 times [2024-11-09 06:52:04,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:04,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495865314] [2024-11-09 06:52:04,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:04,647 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 [2024-11-09 06:52:04,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:04,650 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:04,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:05,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 06:52:05,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:07,042 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 8 treesize of output 1 [2024-11-09 06:52:07,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-09 06:52:08,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:52:08,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2024-11-09 06:52:09,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 67 [2024-11-09 06:52:09,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 67 [2024-11-09 06:52:09,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 67 [2024-11-09 06:52:09,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:52:09,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 146 treesize of output 70 [2024-11-09 06:52:09,767 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 128 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-09 06:52:09,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:10,260 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store (store (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_131) |c_~#double_Array_0~0.base| v_ArrVal_130) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_132) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_133) |c_~#signed_short_int_Array_0~0.base|))) (= ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv4 32))))) ((_ sign_extend 16) ((_ extract 15 0) (bvadd ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|))))))))) is different from false [2024-11-09 06:52:10,836 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:10,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495865314] [2024-11-09 06:52:10,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495865314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:52:10,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1672598491] [2024-11-09 06:52:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:10,837 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:52:10,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:52:10,842 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:52:10,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 06:52:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:11,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:52:11,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:13,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 06:52:15,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-11-09 06:52:18,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 46 [2024-11-09 06:52:19,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 58 [2024-11-09 06:52:20,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 81 [2024-11-09 06:52:20,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 81 [2024-11-09 06:52:20,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 81 [2024-11-09 06:52:21,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 88 [2024-11-09 06:52:21,194 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 176 proven. 24 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:52:21,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:21,427 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_167 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_165 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_166 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store (store (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_167) |c_~#double_Array_0~0.base| v_ArrVal_166) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_165) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_133) |c_~#signed_short_int_Array_0~0.base|))) (= ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv4 32))))) ((_ sign_extend 16) ((_ extract 15 0) (bvadd ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))))))))) is different from false [2024-11-09 06:52:28,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1672598491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:52:28,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172016881] [2024-11-09 06:52:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:28,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:52:28,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:52:28,432 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:52:28,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:52:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:29,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 06:52:29,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:34,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-11-09 06:52:39,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2024-11-09 06:52:41,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:52:41,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 54 [2024-11-09 06:52:42,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 81 [2024-11-09 06:52:43,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 81 [2024-11-09 06:52:44,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 81 [2024-11-09 06:52:45,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:52:45,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 80 [2024-11-09 06:52:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 173 proven. 33 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-09 06:52:45,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:45,712 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_200 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_201 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_199 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store (store (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_199) |c_~#double_Array_0~0.base| v_ArrVal_200) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_201) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_133) |c_~#signed_short_int_Array_0~0.base|))) (= ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv4 32))))) ((_ sign_extend 16) ((_ extract 15 0) (bvadd ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|))))))))) is different from false [2024-11-09 06:52:49,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172016881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:52:49,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:52:49,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 26, 25] total 59 [2024-11-09 06:52:49,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445265476] [2024-11-09 06:52:49,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:52:49,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-09 06:52:49,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:49,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-09 06:52:49,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=643, Invalid=4033, Unknown=28, NotChecked=408, Total=5112 [2024-11-09 06:52:49,872 INFO L87 Difference]: Start difference. First operand 92 states and 127 transitions. Second operand has 60 states, 50 states have (on average 2.6) internal successors, (130), 51 states have internal predecessors, (130), 15 states have call successors, (30), 13 states have call predecessors, (30), 14 states have return successors, (31), 12 states have call predecessors, (31), 15 states have call successors, (31) [2024-11-09 06:52:55,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:52:57,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:00,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:11,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:13,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:16,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:20,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:22,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:25,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:28,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:29,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:32,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:36,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:40,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:44,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:46,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:51,739 INFO L93 Difference]: Finished difference Result 301 states and 406 transitions. [2024-11-09 06:53:51,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 06:53:51,741 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 50 states have (on average 2.6) internal successors, (130), 51 states have internal predecessors, (130), 15 states have call successors, (30), 13 states have call predecessors, (30), 14 states have return successors, (31), 12 states have call predecessors, (31), 15 states have call successors, (31) Word has length 103 [2024-11-09 06:53:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:51,744 INFO L225 Difference]: With dead ends: 301 [2024-11-09 06:53:51,744 INFO L226 Difference]: Without dead ends: 212 [2024-11-09 06:53:51,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 307 SyntacticMatches, 6 SemanticMatches, 91 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3058 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=1126, Invalid=6866, Unknown=30, NotChecked=534, Total=8556 [2024-11-09 06:53:51,748 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 641 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 146 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:51,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1265 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1796 Invalid, 12 Unknown, 0 Unchecked, 54.4s Time] [2024-11-09 06:53:51,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-09 06:53:51,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 124. [2024-11-09 06:53:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 106 states have (on average 1.3113207547169812) internal successors, (139), 106 states have internal predecessors, (139), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:53:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 163 transitions. [2024-11-09 06:53:51,776 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 163 transitions. Word has length 103 [2024-11-09 06:53:51,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:51,777 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 163 transitions. [2024-11-09 06:53:51,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 50 states have (on average 2.6) internal successors, (130), 51 states have internal predecessors, (130), 15 states have call successors, (30), 13 states have call predecessors, (30), 14 states have return successors, (31), 12 states have call predecessors, (31), 15 states have call successors, (31) [2024-11-09 06:53:51,778 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 163 transitions. [2024-11-09 06:53:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:53:51,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:51,780 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:51,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:53:51,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-09 06:53:52,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 06:53:52,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:52,385 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:52,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:52,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1568050454, now seen corresponding path program 1 times [2024-11-09 06:53:52,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:52,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084397108] [2024-11-09 06:53:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:52,387 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 [2024-11-09 06:53:52,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:52,388 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:53:52,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 06:53:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:52,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:53:52,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:52,984 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-09 06:53:52,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 26 [2024-11-09 06:53:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:53:54,653 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:54,653 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:54,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084397108] [2024-11-09 06:53:54,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084397108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:54,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:54,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:53:54,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952212063] [2024-11-09 06:53:54,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:54,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:53:54,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:54,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:53:54,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:53:54,656 INFO L87 Difference]: Start difference. First operand 124 states and 163 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:53:55,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:55,610 INFO L93 Difference]: Finished difference Result 349 states and 457 transitions. [2024-11-09 06:53:55,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:53:55,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-09 06:53:55,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:55,613 INFO L225 Difference]: With dead ends: 349 [2024-11-09 06:53:55,613 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 06:53:55,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:53:55,615 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 71 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:55,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 292 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:53:55,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 06:53:55,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 191. [2024-11-09 06:53:55,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 156 states have (on average 1.2756410256410255) internal successors, (199), 156 states have internal predecessors, (199), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 06:53:55,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 247 transitions. [2024-11-09 06:53:55,657 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 247 transitions. Word has length 103 [2024-11-09 06:53:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:55,658 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 247 transitions. [2024-11-09 06:53:55,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:53:55,658 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 247 transitions. [2024-11-09 06:53:55,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 06:53:55,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:55,660 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:55,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-09 06:53:55,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:53:55,861 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:55,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:55,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1817280662, now seen corresponding path program 1 times [2024-11-09 06:53:55,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:55,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163995050] [2024-11-09 06:53:55,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:55,863 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 [2024-11-09 06:53:55,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:55,864 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:53:55,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:53:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:56,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 06:53:56,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:59,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:54:00,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:54:03,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2024-11-09 06:54:06,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:54:06,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 71 [2024-11-09 06:54:07,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:54:07,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 80 [2024-11-09 06:54:08,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 86 [2024-11-09 06:54:08,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:54:08,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 38 [2024-11-09 06:54:09,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 103 [2024-11-09 06:54:09,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 treesize of output 27 [2024-11-09 06:54:12,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:54:12,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 71 [2024-11-09 06:54:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 197 proven. 15 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-09 06:54:13,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:15,189 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_256 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_257 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_257) |c_~#double_Array_0~0.base| v_ArrVal_256))) (let ((.cse4 (select .cse3 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse4 |c_~#unsigned_short_int_Array_0~0.offset|))))) (let ((.cse1 (store .cse3 |c_~#unsigned_short_int_Array_0~0.base| (store .cse4 (bvadd (_ bv2 32) |c_~#unsigned_short_int_Array_0~0.offset|) .cse0)))) (or (bvsgt ((_ zero_extend 16) ((_ extract 15 0) .cse0)) (bvsdiv ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse1 |c_~#signed_short_int_Array_0~0.base|) (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (select (select .cse1 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|))) (let ((.cse2 (select (store .cse1 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_259) |c_~#unsigned_short_int_Array_0~0.base|))) (= ((_ zero_extend 16) ((_ extract 15 0) (select .cse2 (bvadd (_ bv4 32) |c_~#unsigned_short_int_Array_0~0.offset|)))) ((_ zero_extend 16) ((_ extract 15 0) (select .cse2 |c_~#unsigned_short_int_Array_0~0.offset|))))))))))) is different from false [2024-11-09 06:54:15,468 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_256 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_257 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd (_ bv4 32) |c_~#unsigned_short_int_Array_0~0.offset|))) (let ((.cse4 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| (let ((.cse5 (select |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base|))) (store .cse5 .cse3 ((_ sign_extend 16) ((_ extract 15 0) (select .cse5 |c_~#unsigned_short_int_Array_0~0.offset|)))))) |c_~#float_Array_0~0.base| v_ArrVal_257) |c_~#double_Array_0~0.base| v_ArrVal_256) |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse4 |c_~#unsigned_short_int_Array_0~0.offset|))))) (let ((.cse1 (store (store (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_257) |c_~#double_Array_0~0.base| v_ArrVal_256) |c_~#unsigned_short_int_Array_0~0.base| (store .cse4 (bvadd (_ bv2 32) |c_~#unsigned_short_int_Array_0~0.offset|) .cse0)))) (or (bvsgt ((_ zero_extend 16) ((_ extract 15 0) .cse0)) (bvsdiv ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse1 |c_~#signed_short_int_Array_0~0.base|) (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (select (select .cse1 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|))) (let ((.cse2 (select (store .cse1 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_259) |c_~#unsigned_short_int_Array_0~0.base|))) (= ((_ zero_extend 16) ((_ extract 15 0) (select .cse2 .cse3))) ((_ zero_extend 16) ((_ extract 15 0) (select .cse2 |c_~#unsigned_short_int_Array_0~0.offset|))))))))))) is different from false [2024-11-09 06:54:16,034 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_256 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_257 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32)))) (let ((.cse1 (bvadd (_ bv4 32) |c_~#unsigned_short_int_Array_0~0.offset|)) (.cse5 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| (let ((.cse8 (select |c_#memory_int| |c_~#signed_short_int_Array_0~0.base|))) (store .cse8 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv4 32)) ((_ sign_extend 16) ((_ extract 15 0) (bvadd ((_ sign_extend 16) ((_ extract 15 0) (select .cse8 |c_~#signed_short_int_Array_0~0.offset|))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse8 .cse4))))))))))) (let ((.cse6 (select (store (store (store .cse5 |c_~#unsigned_short_int_Array_0~0.base| (let ((.cse7 (select .cse5 |c_~#unsigned_short_int_Array_0~0.base|))) (store .cse7 .cse1 ((_ sign_extend 16) ((_ extract 15 0) (select .cse7 |c_~#unsigned_short_int_Array_0~0.offset|)))))) |c_~#float_Array_0~0.base| v_ArrVal_257) |c_~#double_Array_0~0.base| v_ArrVal_256) |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse3 ((_ sign_extend 16) ((_ extract 15 0) (select .cse6 |c_~#unsigned_short_int_Array_0~0.offset|))))) (let ((.cse2 (store (store (store .cse5 |c_~#float_Array_0~0.base| v_ArrVal_257) |c_~#double_Array_0~0.base| v_ArrVal_256) |c_~#unsigned_short_int_Array_0~0.base| (store .cse6 (bvadd (_ bv2 32) |c_~#unsigned_short_int_Array_0~0.offset|) .cse3)))) (or (let ((.cse0 (select (store .cse2 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_259) |c_~#unsigned_short_int_Array_0~0.base|))) (= ((_ zero_extend 16) ((_ extract 15 0) (select .cse0 |c_~#unsigned_short_int_Array_0~0.offset|))) ((_ zero_extend 16) ((_ extract 15 0) (select .cse0 .cse1))))) (bvsgt ((_ zero_extend 16) ((_ extract 15 0) .cse3)) (bvsdiv ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse2 |c_~#signed_short_int_Array_0~0.base|) .cse4))) (select (select .cse2 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|)))))))))) is different from false [2024-11-09 06:54:18,512 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:54:18,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163995050] [2024-11-09 06:54:18,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163995050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:54:18,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1202061636] [2024-11-09 06:54:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:18,513 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:54:18,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:54:18,514 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:54:18,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-09 06:54:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:19,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 06:54:19,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:24,942 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 [2024-11-09 06:54:27,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:54:28,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2024-11-09 06:54:28,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 25 [2024-11-09 06:54:28,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2024-11-09 06:54:29,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2024-11-09 06:54:30,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 35 [2024-11-09 06:54:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-09 06:54:30,174 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:54:30,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1202061636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:54:30,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:54:30,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [27] total 36 [2024-11-09 06:54:30,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906024888] [2024-11-09 06:54:30,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:54:30,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:54:30,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:54:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:54:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1509, Unknown=3, NotChecked=246, Total=1980 [2024-11-09 06:54:30,177 INFO L87 Difference]: Start difference. First operand 191 states and 247 transitions. Second operand has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:54:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:54:37,446 INFO L93 Difference]: Finished difference Result 391 states and 516 transitions. [2024-11-09 06:54:37,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:54:37,447 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2024-11-09 06:54:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:54:37,449 INFO L225 Difference]: With dead ends: 391 [2024-11-09 06:54:37,449 INFO L226 Difference]: Without dead ends: 270 [2024-11-09 06:54:37,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=298, Invalid=1967, Unknown=3, NotChecked=282, Total=2550 [2024-11-09 06:54:37,452 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 423 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:54:37,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 446 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-09 06:54:37,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-09 06:54:37,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 229. [2024-11-09 06:54:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 194 states have (on average 1.3195876288659794) internal successors, (256), 194 states have internal predecessors, (256), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 06:54:37,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 304 transitions. [2024-11-09 06:54:37,499 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 304 transitions. Word has length 105 [2024-11-09 06:54:37,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:54:37,500 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 304 transitions. [2024-11-09 06:54:37,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:54:37,500 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 304 transitions. [2024-11-09 06:54:37,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 06:54:37,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:54:37,502 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:54:37,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-09 06:54:37,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:54:37,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:54:37,903 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:54:37,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:54:37,904 INFO L85 PathProgramCache]: Analyzing trace with hash 817183855, now seen corresponding path program 1 times [2024-11-09 06:54:37,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:54:37,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589959388] [2024-11-09 06:54:37,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:37,905 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 [2024-11-09 06:54:37,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:54:37,908 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:54:37,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 06:54:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:38,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:54:38,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:41,645 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 8 treesize of output 1 [2024-11-09 06:54:43,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-09 06:54:45,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:54:45,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2024-11-09 06:54:45,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 67 [2024-11-09 06:54:46,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 67 [2024-11-09 06:54:46,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 67 [2024-11-09 06:54:47,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:54:47,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 46 [2024-11-09 06:54:47,994 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 128 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-09 06:54:47,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:48,897 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_326 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_326) |c_~#signed_short_int_Array_0~0.base|))) (let ((.cse1 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 |c_~#signed_short_int_Array_0~0.offset|)))) (.cse2 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32)))))) (.cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvsgt (bvashr .cse0 .cse1) .cse2)) (not (= ((_ sign_extend 16) ((_ extract 15 0) (bvadd .cse1 .cse2))) .cse0)))))) is different from false [2024-11-09 06:54:49,023 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_323 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_326 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store (store (store (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_324) |c_~#double_Array_0~0.base| v_ArrVal_325) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_323) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_326) |c_~#signed_short_int_Array_0~0.base|))) (let ((.cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv4 32)))))) (.cse1 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 |c_~#signed_short_int_Array_0~0.offset|)))) (.cse2 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))))) (or (not (bvsgt (bvashr .cse0 .cse1) .cse2)) (not (= .cse0 ((_ sign_extend 16) ((_ extract 15 0) (bvadd .cse1 .cse2))))))))) is different from false [2024-11-09 06:54:50,398 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:54:50,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589959388] [2024-11-09 06:54:50,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589959388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:54:50,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1048189852] [2024-11-09 06:54:50,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:50,399 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:54:50,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:54:50,401 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:54:50,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-09 06:54:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:51,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 06:54:51,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:57,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2024-11-09 06:54:58,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 41 [2024-11-09 06:54:58,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 41 [2024-11-09 06:54:59,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 41 [2024-11-09 06:55:00,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 36 [2024-11-09 06:55:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:55:01,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:01,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1048189852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:01,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:55:01,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 27 [2024-11-09 06:55:01,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005743002] [2024-11-09 06:55:01,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:01,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:55:01,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:01,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:55:01,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1010, Unknown=4, NotChecked=134, Total=1332 [2024-11-09 06:55:01,018 INFO L87 Difference]: Start difference. First operand 229 states and 304 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:07,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:07,997 INFO L93 Difference]: Finished difference Result 450 states and 598 transitions. [2024-11-09 06:55:07,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:55:07,998 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-09 06:55:07,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:08,000 INFO L225 Difference]: With dead ends: 450 [2024-11-09 06:55:08,001 INFO L226 Difference]: Without dead ends: 301 [2024-11-09 06:55:08,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=230, Invalid=1180, Unknown=4, NotChecked=146, Total=1560 [2024-11-09 06:55:08,003 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 253 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:08,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 342 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-09 06:55:08,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-09 06:55:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 232. [2024-11-09 06:55:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 197 states have (on average 1.3147208121827412) internal successors, (259), 197 states have internal predecessors, (259), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 06:55:08,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 307 transitions. [2024-11-09 06:55:08,045 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 307 transitions. Word has length 107 [2024-11-09 06:55:08,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:08,045 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 307 transitions. [2024-11-09 06:55:08,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:08,046 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 307 transitions. [2024-11-09 06:55:08,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 06:55:08,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:08,048 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:08,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-09 06:55:08,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-09 06:55:08,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:55:08,449 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:08,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:08,449 INFO L85 PathProgramCache]: Analyzing trace with hash -832375057, now seen corresponding path program 1 times [2024-11-09 06:55:08,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:08,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435124722] [2024-11-09 06:55:08,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:08,450 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 [2024-11-09 06:55:08,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:08,454 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:55:08,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:55:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:08,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:55:08,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:12,074 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 8 treesize of output 1 [2024-11-09 06:55:14,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-09 06:55:15,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:15,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2024-11-09 06:55:16,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2024-11-09 06:55:16,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 57 [2024-11-09 06:55:17,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2024-11-09 06:55:18,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:18,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 40 [2024-11-09 06:55:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 128 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-09 06:55:18,520 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:19,455 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_390 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_390) |c_~#signed_short_int_Array_0~0.base|))) (let ((.cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv4 32)))))) (.cse1 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 |c_~#signed_short_int_Array_0~0.offset|)))) (.cse2 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))))) (or (not (= .cse0 ((_ sign_extend 16) ((_ extract 15 0) (bvadd .cse1 .cse2))))) (bvsgt (bvashr .cse0 .cse1) .cse2))))) is different from false [2024-11-09 06:55:24,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435124722] [2024-11-09 06:55:24,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435124722] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1589195551] [2024-11-09 06:55:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:24,535 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:55:24,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:55:24,536 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:55:24,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-09 06:55:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:25,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 06:55:25,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:31,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2024-11-09 06:55:33,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 06:55:33,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 40 [2024-11-09 06:55:34,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 06:55:35,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 35 [2024-11-09 06:55:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:55:35,832 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:35,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1589195551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:35,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:55:35,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 27 [2024-11-09 06:55:35,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667705197] [2024-11-09 06:55:35,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:35,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:55:35,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:35,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:55:35,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1061, Unknown=16, NotChecked=68, Total=1332 [2024-11-09 06:55:35,835 INFO L87 Difference]: Start difference. First operand 232 states and 307 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:45,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:45,569 INFO L93 Difference]: Finished difference Result 453 states and 600 transitions. [2024-11-09 06:55:45,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:55:45,570 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-09 06:55:45,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:45,572 INFO L225 Difference]: With dead ends: 453 [2024-11-09 06:55:45,572 INFO L226 Difference]: Without dead ends: 301 [2024-11-09 06:55:45,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=236, Invalid=1234, Unknown=16, NotChecked=74, Total=1560 [2024-11-09 06:55:45,574 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 177 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:45,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 514 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-09 06:55:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-09 06:55:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 235. [2024-11-09 06:55:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 200 states have (on average 1.31) internal successors, (262), 200 states have internal predecessors, (262), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 06:55:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 310 transitions. [2024-11-09 06:55:45,616 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 310 transitions. Word has length 107 [2024-11-09 06:55:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:45,617 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 310 transitions. [2024-11-09 06:55:45,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 310 transitions. [2024-11-09 06:55:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 06:55:45,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:45,619 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:45,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:55:45,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:55:46,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:55:46,020 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:46,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:46,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1595675060, now seen corresponding path program 1 times [2024-11-09 06:55:46,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:46,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933904295] [2024-11-09 06:55:46,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:46,022 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 [2024-11-09 06:55:46,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:46,025 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:55:46,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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)] Waiting until timeout for monitored process [2024-11-09 06:55:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:46,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:55:46,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:48,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-09 06:55:48,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2024-11-09 06:55:49,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:49,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 27 [2024-11-09 06:55:49,311 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:55:49,311 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:49,311 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:49,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933904295] [2024-11-09 06:55:49,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933904295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:49,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:49,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:55:49,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525166591] [2024-11-09 06:55:49,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:49,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:55:49,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:49,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:55:49,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:55:49,313 INFO L87 Difference]: Start difference. First operand 235 states and 310 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:51,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:51,595 INFO L93 Difference]: Finished difference Result 240 states and 315 transitions. [2024-11-09 06:55:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:55:51,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-09 06:55:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:51,598 INFO L225 Difference]: With dead ends: 240 [2024-11-09 06:55:51,598 INFO L226 Difference]: Without dead ends: 238 [2024-11-09 06:55:51,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:55:51,599 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 164 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:51,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 320 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 06:55:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-09 06:55:51,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2024-11-09 06:55:51,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 203 states have (on average 1.3054187192118227) internal successors, (265), 203 states have internal predecessors, (265), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 06:55:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 313 transitions. [2024-11-09 06:55:51,633 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 313 transitions. Word has length 109 [2024-11-09 06:55:51,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:51,634 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 313 transitions. [2024-11-09 06:55:51,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:51,634 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 313 transitions. [2024-11-09 06:55:51,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 06:55:51,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:51,636 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:51,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:55:51,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:55:51,840 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:51,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:51,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1597522102, now seen corresponding path program 1 times [2024-11-09 06:55:51,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:51,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318119225] [2024-11-09 06:55:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:51,841 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 [2024-11-09 06:55:51,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:51,842 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:55:51,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:55:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:52,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-09 06:55:52,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:53,868 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 [2024-11-09 06:55:55,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:55:57,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:55:59,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:00,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:01,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:02,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:02,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 96 [2024-11-09 06:56:02,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2024-11-09 06:56:02,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 [2024-11-09 06:56:02,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 49 [2024-11-09 06:56:02,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 84 [2024-11-09 06:56:04,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 84 [2024-11-09 06:56:11,084 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:11,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 103 [2024-11-09 06:56:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 06:56:11,707 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:11,707 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:11,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318119225] [2024-11-09 06:56:11,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318119225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:11,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:11,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 06:56:11,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020870213] [2024-11-09 06:56:11,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:11,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:56:11,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:11,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:56:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:56:11,710 INFO L87 Difference]: Start difference. First operand 238 states and 313 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:56:18,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:21,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:23,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:25,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:27,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:30,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:32,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:39,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:39,672 INFO L93 Difference]: Finished difference Result 686 states and 899 transitions. [2024-11-09 06:56:39,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:56:39,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-09 06:56:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:39,676 INFO L225 Difference]: With dead ends: 686 [2024-11-09 06:56:39,676 INFO L226 Difference]: Without dead ends: 528 [2024-11-09 06:56:39,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:56:39,678 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 484 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 15 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:39,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 453 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 664 Invalid, 7 Unknown, 0 Unchecked, 23.9s Time] [2024-11-09 06:56:39,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-09 06:56:39,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 408. [2024-11-09 06:56:39,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 343 states have (on average 1.2915451895043732) internal successors, (443), 343 states have internal predecessors, (443), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 06:56:39,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 531 transitions. [2024-11-09 06:56:39,733 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 531 transitions. Word has length 109 [2024-11-09 06:56:39,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:39,733 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 531 transitions. [2024-11-09 06:56:39,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:56:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 531 transitions. [2024-11-09 06:56:39,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 06:56:39,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:39,734 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:39,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:56:39,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:56:39,935 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:56:39,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:39,936 INFO L85 PathProgramCache]: Analyzing trace with hash -922437832, now seen corresponding path program 1 times [2024-11-09 06:56:39,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:56:39,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301499955] [2024-11-09 06:56:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:39,936 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 [2024-11-09 06:56:39,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:56:39,937 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:56:39,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (18)] Waiting until timeout for monitored process [2024-11-09 06:56:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:40,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:56:40,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:41,742 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 [2024-11-09 06:56:43,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:45,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:46,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:47,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:48,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:49,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:49,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 69 [2024-11-09 06:56:49,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 75 [2024-11-09 06:56:49,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 75 [2024-11-09 06:56:50,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:50,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 191 treesize of output 77 [2024-11-09 06:56:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 06:56:50,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:51,555 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_3_20 (_ BitVec 32)) (v_ArrVal_523 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_524 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_525 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select |c_#memory_int| |c_~#float_Array_0~0.base|))) (or (not (= (fp ((_ extract 31 31) v_skolemized_v_prenex_3_20) ((_ extract 30 23) v_skolemized_v_prenex_3_20) ((_ extract 22 0) v_skolemized_v_prenex_3_20)) (let ((.cse0 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (let ((.cse4 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|))) (let ((.cse3 (select (store (store (store (store |c_#memory_int| |c_~#float_Array_0~0.base| (store .cse1 .cse4 v_skolemized_v_prenex_3_20)) |c_~#double_Array_0~0.base| v_ArrVal_523) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_524) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_525) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse2 (select .cse3 .cse4))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (let ((.cse5 (select .cse3 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))))))) is different from false [2024-11-09 06:56:51,627 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_520 (Array (_ BitVec 32) (_ BitVec 32))) (v_skolemized_v_prenex_3_20 (_ BitVec 32)) (v_ArrVal_523 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_524 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_525 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_520) |c_~#float_Array_0~0.base|))) (or (let ((.cse2 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|))) (let ((.cse1 (select (store (store (store (store |c_#memory_int| |c_~#float_Array_0~0.base| (store .cse4 .cse2 v_skolemized_v_prenex_3_20)) |c_~#double_Array_0~0.base| v_ArrVal_523) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_524) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_525) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse0 (select .cse1 .cse2))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse3 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))))) (not (= (fp ((_ extract 31 31) v_skolemized_v_prenex_3_20) ((_ extract 30 23) v_skolemized_v_prenex_3_20) ((_ extract 22 0) v_skolemized_v_prenex_3_20)) (let ((.cse5 (select .cse4 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))))))) is different from false [2024-11-09 06:56:51,740 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_520 (Array (_ BitVec 32) (_ BitVec 32))) (v_skolemized_v_prenex_3_20 (_ BitVec 32)) (v_ArrVal_519 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_523 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_524 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_525 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_519))) (let ((.cse5 (select (store .cse4 |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_520) |c_~#float_Array_0~0.base|))) (or (let ((.cse2 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|))) (let ((.cse1 (select (store (store (store (store .cse4 |c_~#float_Array_0~0.base| (store .cse5 .cse2 v_skolemized_v_prenex_3_20)) |c_~#double_Array_0~0.base| v_ArrVal_523) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_524) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_525) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse0 (select .cse1 .cse2))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse3 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))))) (not (= (fp ((_ extract 31 31) v_skolemized_v_prenex_3_20) ((_ extract 30 23) v_skolemized_v_prenex_3_20) ((_ extract 22 0) v_skolemized_v_prenex_3_20)) (let ((.cse6 (select .cse5 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))))))) is different from false [2024-11-09 06:56:51,870 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:51,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301499955] [2024-11-09 06:56:51,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301499955] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:51,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [469810076] [2024-11-09 06:56:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:51,871 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:56:51,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:56:51,873 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:56:51,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 06:56:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:53,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:56:53,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:55,143 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 [2024-11-09 06:56:57,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:56:59,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:00,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:02,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:03,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:04,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:04,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 67 [2024-11-09 06:57:04,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 69 [2024-11-09 06:57:04,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 69 [2024-11-09 06:57:05,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 77 [2024-11-09 06:57:05,994 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 06:57:05,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:06,218 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_562 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_562) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse0 (select .cse1 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) is different from false [2024-11-09 06:57:07,344 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_3_22 (_ BitVec 32)) (v_ArrVal_560 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_562 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_556 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_557 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_558 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_556))) (let ((.cse1 (select (store .cse6 |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_557) |c_~#float_Array_0~0.base|))) (or (not (= (let ((.cse0 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) v_skolemized_v_prenex_3_22) ((_ extract 30 23) v_skolemized_v_prenex_3_22) ((_ extract 22 0) v_skolemized_v_prenex_3_22)))) (let ((.cse4 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|))) (let ((.cse3 (select (store (store (store (store .cse6 |c_~#float_Array_0~0.base| (store .cse1 .cse4 v_skolemized_v_prenex_3_22)) |c_~#double_Array_0~0.base| v_ArrVal_558) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_560) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_562) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse2 (select .cse3 .cse4))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (let ((.cse5 (select .cse3 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))))))))) is different from false [2024-11-09 06:57:07,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [469810076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:07,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807687846] [2024-11-09 06:57:07,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:07,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:07,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:57:07,484 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:57:07,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 06:57:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:08,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 06:57:08,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:09,951 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 [2024-11-09 06:57:10,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:12,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:13,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:14,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:16,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:16,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 06:57:16,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 69 [2024-11-09 06:57:16,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 75 [2024-11-09 06:57:16,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 75 [2024-11-09 06:57:17,435 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:57:17,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 191 treesize of output 77 [2024-11-09 06:57:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 06:57:17,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:17,733 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_598 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_598) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse0 (select .cse1 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) is different from false [2024-11-09 06:57:18,525 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_596 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_598 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_594 (Array (_ BitVec 32) (_ BitVec 32))) (v_skolemized_v_prenex_3_24 (_ BitVec 32)) (v_ArrVal_595 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_594) |c_~#float_Array_0~0.base|))) (or (let ((.cse2 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|))) (let ((.cse1 (select (store (store (store (store |c_#memory_int| |c_~#float_Array_0~0.base| (store .cse4 .cse2 v_skolemized_v_prenex_3_24)) |c_~#double_Array_0~0.base| v_ArrVal_595) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_596) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_598) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse0 (select .cse1 .cse2))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse3 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))))) (not (= (fp ((_ extract 31 31) v_skolemized_v_prenex_3_24) ((_ extract 30 23) v_skolemized_v_prenex_3_24) ((_ extract 22 0) v_skolemized_v_prenex_3_24)) (let ((.cse5 (select .cse4 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))))))) is different from false [2024-11-09 06:57:19,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807687846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:19,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:57:19,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 19 [2024-11-09 06:57:19,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170441731] [2024-11-09 06:57:19,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:57:19,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 06:57:19,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:57:19,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 06:57:19,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=501, Unknown=61, NotChecked=378, Total=1056 [2024-11-09 06:57:19,199 INFO L87 Difference]: Start difference. First operand 408 states and 531 transitions. Second operand has 20 states, 20 states have (on average 5.1) internal successors, (102), 19 states have internal predecessors, (102), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-09 06:57:25,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:28,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:31,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:57:31,916 INFO L93 Difference]: Finished difference Result 779 states and 1027 transitions. [2024-11-09 06:57:31,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:57:31,918 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 19 states have internal predecessors, (102), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 109 [2024-11-09 06:57:31,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:57:31,921 INFO L225 Difference]: With dead ends: 779 [2024-11-09 06:57:31,922 INFO L226 Difference]: Without dead ends: 509 [2024-11-09 06:57:31,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=225, Invalid=796, Unknown=63, NotChecked=476, Total=1560 [2024-11-09 06:57:31,924 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 399 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:57:31,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 536 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 824 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2024-11-09 06:57:31,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-09 06:57:31,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 488. [2024-11-09 06:57:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 423 states have (on average 1.3144208037825058) internal successors, (556), 423 states have internal predecessors, (556), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 06:57:31,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 644 transitions. [2024-11-09 06:57:31,997 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 644 transitions. Word has length 109 [2024-11-09 06:57:31,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:57:31,998 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 644 transitions. [2024-11-09 06:57:31,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 19 states have internal predecessors, (102), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-09 06:57:31,999 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 644 transitions. [2024-11-09 06:57:32,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 06:57:32,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:57:32,000 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:32,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:32,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:32,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (18)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:32,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:57:32,601 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:57:32,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:32,602 INFO L85 PathProgramCache]: Analyzing trace with hash -242379462, now seen corresponding path program 1 times [2024-11-09 06:57:32,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:57:32,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999858257] [2024-11-09 06:57:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:32,603 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 [2024-11-09 06:57:32,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:57:32,607 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:57:32,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:57:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:33,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:57:33,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:38,043 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 8 treesize of output 1 [2024-11-09 06:57:38,226 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 8 treesize of output 1 [2024-11-09 06:57:38,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2024-11-09 06:57:38,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2024-11-09 06:57:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:57:39,319 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:57:39,319 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:57:39,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999858257] [2024-11-09 06:57:39,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999858257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:39,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:57:39,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:57:39,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025638401] [2024-11-09 06:57:39,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:39,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:57:39,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:57:39,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:57:39,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:57:39,321 INFO L87 Difference]: Start difference. First operand 488 states and 644 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:57:43,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:57:43,190 INFO L93 Difference]: Finished difference Result 903 states and 1195 transitions. [2024-11-09 06:57:43,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:57:43,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-09 06:57:43,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:57:43,195 INFO L225 Difference]: With dead ends: 903 [2024-11-09 06:57:43,196 INFO L226 Difference]: Without dead ends: 567 [2024-11-09 06:57:43,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:57:43,197 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 157 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:57:43,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 366 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 06:57:43,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-09 06:57:43,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 534. [2024-11-09 06:57:43,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 469 states have (on average 1.3091684434968016) internal successors, (614), 469 states have internal predecessors, (614), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 06:57:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 702 transitions. [2024-11-09 06:57:43,268 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 702 transitions. Word has length 109 [2024-11-09 06:57:43,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:57:43,269 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 702 transitions. [2024-11-09 06:57:43,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:57:43,269 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 702 transitions. [2024-11-09 06:57:43,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 06:57:43,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:57:43,271 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:43,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:57:43,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:57:43,472 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:57:43,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:43,473 INFO L85 PathProgramCache]: Analyzing trace with hash -502919805, now seen corresponding path program 1 times [2024-11-09 06:57:43,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:57:43,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547117104] [2024-11-09 06:57:43,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:43,474 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 [2024-11-09 06:57:43,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:57:43,477 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:57:43,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:57:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:44,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 06:57:44,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:44,477 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 8 treesize of output 1 [2024-11-09 06:57:45,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:46,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:48,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:49,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:50,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:51,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:52,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:52,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2024-11-09 06:57:52,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:57:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-09 06:57:53,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:53,243 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_667 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 8) ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_667) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)))) is different from false [2024-11-09 06:57:54,336 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:57:54,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547117104] [2024-11-09 06:57:54,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547117104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:54,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1381897259] [2024-11-09 06:57:54,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:54,337 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:57:54,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:57:54,338 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:57:54,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-09 06:57:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:55,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:57:55,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:55,445 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 [2024-11-09 06:57:56,306 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 8 treesize of output 1 [2024-11-09 06:57:56,989 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 8 treesize of output 1 [2024-11-09 06:57:58,288 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 8 treesize of output 1 [2024-11-09 06:57:59,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:00,035 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 8 treesize of output 1 [2024-11-09 06:58:01,076 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 8 treesize of output 1 [2024-11-09 06:58:01,324 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 8 treesize of output 1 [2024-11-09 06:58:01,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2024-11-09 06:58:01,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:58:01,824 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:58:01,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:58:01,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1381897259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:58:01,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:58:01,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 13 [2024-11-09 06:58:01,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981070173] [2024-11-09 06:58:01,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:58:01,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:58:01,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:01,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:58:01,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=214, Unknown=23, NotChecked=32, Total=342 [2024-11-09 06:58:01,827 INFO L87 Difference]: Start difference. First operand 534 states and 702 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:58:05,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:05,150 INFO L93 Difference]: Finished difference Result 1027 states and 1354 transitions. [2024-11-09 06:58:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:58:05,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-09 06:58:05,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:05,156 INFO L225 Difference]: With dead ends: 1027 [2024-11-09 06:58:05,156 INFO L226 Difference]: Without dead ends: 649 [2024-11-09 06:58:05,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=107, Invalid=292, Unknown=25, NotChecked=38, Total=462 [2024-11-09 06:58:05,158 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 269 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:05,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 259 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 06:58:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-09 06:58:05,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 606. [2024-11-09 06:58:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 541 states have (on average 1.299445471349353) internal successors, (703), 541 states have internal predecessors, (703), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 06:58:05,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 791 transitions. [2024-11-09 06:58:05,243 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 791 transitions. Word has length 109 [2024-11-09 06:58:05,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:05,244 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 791 transitions. [2024-11-09 06:58:05,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:58:05,244 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 791 transitions. [2024-11-09 06:58:05,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 06:58:05,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:05,247 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:05,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:05,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:58:05,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:58:05,648 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:58:05,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1876302156, now seen corresponding path program 1 times [2024-11-09 06:58:05,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:05,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676232630] [2024-11-09 06:58:05,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:05,649 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 [2024-11-09 06:58:05,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:05,650 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:58:05,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (24)] Waiting until timeout for monitored process [2024-11-09 06:58:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:06,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:58:06,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:10,187 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 8 treesize of output 1 [2024-11-09 06:58:10,983 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 8 treesize of output 1 [2024-11-09 06:58:11,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2024-11-09 06:58:11,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2024-11-09 06:58:11,541 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:58:11,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 27 [2024-11-09 06:58:11,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2024-11-09 06:58:12,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:58:12,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 23 [2024-11-09 06:58:12,430 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:58:12,431 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:58:12,431 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:12,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676232630] [2024-11-09 06:58:12,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676232630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:58:12,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:58:12,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:58:12,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122152727] [2024-11-09 06:58:12,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:58:12,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:58:12,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:12,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:58:12,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:58:12,433 INFO L87 Difference]: Start difference. First operand 606 states and 791 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:58:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:20,462 INFO L93 Difference]: Finished difference Result 1315 states and 1736 transitions. [2024-11-09 06:58:20,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:58:20,463 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-09 06:58:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:20,468 INFO L225 Difference]: With dead ends: 1315 [2024-11-09 06:58:20,468 INFO L226 Difference]: Without dead ends: 873 [2024-11-09 06:58:20,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:58:20,483 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 250 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:20,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 576 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-09 06:58:20,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-09 06:58:20,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 756. [2024-11-09 06:58:20,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 691 states have (on average 1.321273516642547) internal successors, (913), 691 states have internal predecessors, (913), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 06:58:20,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1001 transitions. [2024-11-09 06:58:20,552 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1001 transitions. Word has length 109 [2024-11-09 06:58:20,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:20,553 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 1001 transitions. [2024-11-09 06:58:20,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:58:20,553 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1001 transitions. [2024-11-09 06:58:20,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 06:58:20,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:20,555 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:20,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (24)] Ended with exit code 0 [2024-11-09 06:58:20,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:58:20,755 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:58:20,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:20,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1138801462, now seen corresponding path program 1 times [2024-11-09 06:58:20,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:20,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017406441] [2024-11-09 06:58:20,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:20,757 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 [2024-11-09 06:58:20,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:20,758 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:58:20,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (25)] Waiting until timeout for monitored process [2024-11-09 06:58:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:21,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:58:21,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:22,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:24,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:58:25,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:58:26,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2024-11-09 06:58:28,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:58:28,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 50 [2024-11-09 06:58:28,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2024-11-09 06:58:28,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 61 [2024-11-09 06:58:29,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 19 [2024-11-09 06:58:30,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 78 [2024-11-09 06:58:30,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 treesize of output 27 [2024-11-09 06:58:31,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:58:31,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 84 treesize of output 36 [2024-11-09 06:58:39,553 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 177 proven. 24 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-09 06:58:39,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:42,355 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_770 (Array (_ BitVec 32) (_ BitVec 32))) (|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32))) (let ((.cse2 (store (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_773) |c_~#double_Array_0~0.base| v_ArrVal_770))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 |~#unsigned_short_int_Array_0~0.offset|))))) (let ((.cse1 (store .cse2 |c_~#unsigned_short_int_Array_0~0.base| (store .cse3 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)) .cse0)))) (or (bvsgt ((_ zero_extend 16) ((_ extract 15 0) .cse0)) (bvsdiv ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse1 |c_~#signed_short_int_Array_0~0.base|) (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (select (select .cse1 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|))) (bvsgt (bvadd (bvneg ((_ zero_extend 16) ((_ extract 15 0) (select (select (store .cse1 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_774) |c_~#unsigned_short_int_Array_0~0.base|) |~#unsigned_short_int_Array_0~0.offset|)))) (_ bv42286 32)) (_ bv0 32)))))))) is different from false [2024-11-09 06:58:42,638 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_770 (Array (_ BitVec 32) (_ BitVec 32))) (|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_769 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_769) |c_~#float_Array_0~0.base| v_ArrVal_773) |c_~#double_Array_0~0.base| v_ArrVal_770) |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse2 |~#unsigned_short_int_Array_0~0.offset|))))) (let ((.cse1 (store (store (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_773) |c_~#double_Array_0~0.base| v_ArrVal_770) |c_~#unsigned_short_int_Array_0~0.base| (store .cse2 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)) .cse0)))) (or (bvsgt ((_ zero_extend 16) ((_ extract 15 0) .cse0)) (bvsdiv ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse1 |c_~#signed_short_int_Array_0~0.base|) (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (select (select .cse1 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|))) (bvsgt (bvadd (bvneg ((_ zero_extend 16) ((_ extract 15 0) (select (select (store .cse1 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_774) |c_~#unsigned_short_int_Array_0~0.base|) |~#unsigned_short_int_Array_0~0.offset|)))) (_ bv42286 32)) (_ bv0 32))))))) is different from false [2024-11-09 06:58:43,576 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_770 (Array (_ BitVec 32) (_ BitVec 32))) (|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_769 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32)))) (let ((.cse3 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| (let ((.cse5 (select |c_#memory_int| |c_~#signed_short_int_Array_0~0.base|))) (store .cse5 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv4 32)) ((_ sign_extend 16) ((_ extract 15 0) (bvadd ((_ sign_extend 16) ((_ extract 15 0) (select .cse5 |c_~#signed_short_int_Array_0~0.offset|))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse5 .cse2))))))))))) (let ((.cse4 (select (store (store (store .cse3 |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_769) |c_~#float_Array_0~0.base| v_ArrVal_773) |c_~#double_Array_0~0.base| v_ArrVal_770) |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse1 ((_ sign_extend 16) ((_ extract 15 0) (select .cse4 |~#unsigned_short_int_Array_0~0.offset|))))) (let ((.cse0 (store (store (store .cse3 |c_~#float_Array_0~0.base| v_ArrVal_773) |c_~#double_Array_0~0.base| v_ArrVal_770) |c_~#unsigned_short_int_Array_0~0.base| (store .cse4 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)) .cse1)))) (or (bvsgt (bvadd (bvneg ((_ zero_extend 16) ((_ extract 15 0) (select (select (store .cse0 |c_~#signed_long_int_Array_0~0.base| v_ArrVal_774) |c_~#unsigned_short_int_Array_0~0.base|) |~#unsigned_short_int_Array_0~0.offset|)))) (_ bv42286 32)) (_ bv0 32)) (bvsgt ((_ zero_extend 16) ((_ extract 15 0) .cse1)) (bvsdiv ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse0 |c_~#signed_short_int_Array_0~0.base|) .cse2))) (select (select .cse0 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|)))))))))) is different from false [2024-11-09 06:58:44,138 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:44,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017406441] [2024-11-09 06:58:44,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017406441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:58:44,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [14063526] [2024-11-09 06:58:44,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:44,139 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:58:44,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:58:44,142 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:58:44,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-09 06:58:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:45,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:58:45,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:50,520 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 [2024-11-09 06:58:58,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:58:58,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-09 06:59:00,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 27 [2024-11-09 06:59:00,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 34 [2024-11-09 06:59:01,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 29 [2024-11-09 06:59:02,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 20 [2024-11-09 06:59:09,772 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-09 06:59:09,772 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:59:09,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [14063526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:09,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:59:09,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2024-11-09 06:59:09,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874621768] [2024-11-09 06:59:09,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:09,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:59:09,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:59:09,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:59:09,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=709, Unknown=4, NotChecked=168, Total=992 [2024-11-09 06:59:09,775 INFO L87 Difference]: Start difference. First operand 756 states and 1001 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:59:13,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:16,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:20,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:26,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:28,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:30,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:34,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:36,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:42,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:44,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:46,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:48,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:50,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:52,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:54,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:56,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:59,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:01,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:05,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:08,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:10,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:12,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:15,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:15,337 INFO L93 Difference]: Finished difference Result 1326 states and 1766 transitions. [2024-11-09 07:00:15,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:00:15,338 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-09 07:00:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:15,341 INFO L225 Difference]: With dead ends: 1326 [2024-11-09 07:00:15,342 INFO L226 Difference]: Without dead ends: 764 [2024-11-09 07:00:15,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 38.2s TimeCoverageRelationStatistics Valid=168, Invalid=962, Unknown=4, NotChecked=198, Total=1332 [2024-11-09 07:00:15,344 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 221 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 27 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:15,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 258 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 486 Invalid, 12 Unknown, 0 Unchecked, 57.7s Time] [2024-11-09 07:00:15,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-09 07:00:15,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 756. [2024-11-09 07:00:15,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 691 states have (on average 1.3039073806078147) internal successors, (901), 691 states have internal predecessors, (901), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 07:00:15,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 989 transitions. [2024-11-09 07:00:15,431 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 989 transitions. Word has length 109 [2024-11-09 07:00:15,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:15,431 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 989 transitions. [2024-11-09 07:00:15,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 07:00:15,431 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 989 transitions. [2024-11-09 07:00:15,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 07:00:15,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:15,433 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:15,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-09 07:00:15,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (25)] Forceful destruction successful, exit code 0 [2024-11-09 07:00:15,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:00:15,834 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:00:15,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:15,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1735753546, now seen corresponding path program 1 times [2024-11-09 07:00:15,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:00:15,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011008389] [2024-11-09 07:00:15,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:15,835 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 [2024-11-09 07:00:15,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:00:15,836 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:00:15,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (27)] Waiting until timeout for monitored process [2024-11-09 07:00:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:16,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 07:00:16,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:17,830 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 8 treesize of output 1 [2024-11-09 07:00:18,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:00:18,618 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 18 treesize of output 10 [2024-11-09 07:00:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-09 07:00:24,436 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:00:24,436 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:00:24,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011008389] [2024-11-09 07:00:24,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011008389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:24,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:24,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 07:00:24,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439959493] [2024-11-09 07:00:24,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:24,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:00:24,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:00:24,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:00:24,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2024-11-09 07:00:24,438 INFO L87 Difference]: Start difference. First operand 756 states and 989 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 07:00:27,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:31,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:32,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:32,884 INFO L93 Difference]: Finished difference Result 1218 states and 1590 transitions. [2024-11-09 07:00:32,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:00:32,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-09 07:00:32,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:32,888 INFO L225 Difference]: With dead ends: 1218 [2024-11-09 07:00:32,888 INFO L226 Difference]: Without dead ends: 626 [2024-11-09 07:00:32,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=37, Invalid=94, Unknown=1, NotChecked=0, Total=132 [2024-11-09 07:00:32,891 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 83 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:32,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 308 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-09 07:00:32,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-09 07:00:32,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 618. [2024-11-09 07:00:32,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 553 states have (on average 1.27124773960217) internal successors, (703), 553 states have internal predecessors, (703), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 07:00:32,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 791 transitions. [2024-11-09 07:00:32,972 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 791 transitions. Word has length 109 [2024-11-09 07:00:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:32,973 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 791 transitions. [2024-11-09 07:00:32,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 07:00:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 791 transitions. [2024-11-09 07:00:32,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 07:00:32,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:32,975 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:32,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (27)] Ended with exit code 0 [2024-11-09 07:00:33,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:00:33,176 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:00:33,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:33,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1569021812, now seen corresponding path program 1 times [2024-11-09 07:00:33,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:00:33,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426346118] [2024-11-09 07:00:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:33,178 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 [2024-11-09 07:00:33,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:00:33,181 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:00:33,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (28)] Waiting until timeout for monitored process [2024-11-09 07:00:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:33,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:00:33,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 07:00:33,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:00:33,644 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:00:33,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426346118] [2024-11-09 07:00:33,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426346118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:33,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:33,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:00:33,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425318007] [2024-11-09 07:00:33,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:33,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:00:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:00:33,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:00:33,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:00:33,647 INFO L87 Difference]: Start difference. First operand 618 states and 791 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 07:00:33,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:33,834 INFO L93 Difference]: Finished difference Result 1146 states and 1470 transitions. [2024-11-09 07:00:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:00:33,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-09 07:00:33,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:33,838 INFO L225 Difference]: With dead ends: 1146 [2024-11-09 07:00:33,838 INFO L226 Difference]: Without dead ends: 618 [2024-11-09 07:00:33,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:00:33,840 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:33,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 337 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:00:33,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-09 07:00:33,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2024-11-09 07:00:33,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 553 states have (on average 1.267631103074141) internal successors, (701), 553 states have internal predecessors, (701), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 07:00:33,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 789 transitions. [2024-11-09 07:00:33,921 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 789 transitions. Word has length 109 [2024-11-09 07:00:33,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:33,921 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 789 transitions. [2024-11-09 07:00:33,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 07:00:33,922 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 789 transitions. [2024-11-09 07:00:33,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 07:00:33,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:33,923 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:33,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (28)] Ended with exit code 0 [2024-11-09 07:00:34,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:00:34,124 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:00:34,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:34,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1138593707, now seen corresponding path program 1 times [2024-11-09 07:00:34,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:00:34,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987152910] [2024-11-09 07:00:34,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:34,126 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 [2024-11-09 07:00:34,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:00:34,127 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:00:34,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (29)] Waiting until timeout for monitored process [2024-11-09 07:00:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:34,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-09 07:00:34,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:35,025 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 9 treesize of output 3 [2024-11-09 07:00:39,686 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 8 treesize of output 1 [2024-11-09 07:00:40,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:00:40,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2024-11-09 07:00:41,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2024-11-09 07:00:41,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2024-11-09 07:00:41,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 19 [2024-11-09 07:00:44,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:00:44,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 105 [2024-11-09 07:00:55,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:00:55,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 179 treesize of output 79 [2024-11-09 07:00:55,473 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:00:55,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:00:55,474 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:00:55,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987152910] [2024-11-09 07:00:55,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987152910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:55,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:55,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 07:00:55,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066889983] [2024-11-09 07:00:55,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:55,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 07:00:55,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:00:55,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 07:00:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-09 07:00:55,476 INFO L87 Difference]: Start difference. First operand 618 states and 789 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:01:19,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:37,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:37,473 INFO L93 Difference]: Finished difference Result 1326 states and 1670 transitions. [2024-11-09 07:01:37,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:01:37,474 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-09 07:01:37,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:37,477 INFO L225 Difference]: With dead ends: 1326 [2024-11-09 07:01:37,477 INFO L226 Difference]: Without dead ends: 872 [2024-11-09 07:01:37,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2024-11-09 07:01:37,479 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 178 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:37,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 694 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1159 Invalid, 1 Unknown, 0 Unchecked, 32.6s Time] [2024-11-09 07:01:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-11-09 07:01:37,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 638. [2024-11-09 07:01:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 573 states have (on average 1.2582897033158813) internal successors, (721), 573 states have internal predecessors, (721), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 07:01:37,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 809 transitions. [2024-11-09 07:01:37,565 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 809 transitions. Word has length 110 [2024-11-09 07:01:37,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:37,566 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 809 transitions. [2024-11-09 07:01:37,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:01:37,566 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 809 transitions. [2024-11-09 07:01:37,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 07:01:37,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:37,568 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:37,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (29)] Ended with exit code 0 [2024-11-09 07:01:37,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:37,768 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:37,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:37,769 INFO L85 PathProgramCache]: Analyzing trace with hash -858471112, now seen corresponding path program 1 times [2024-11-09 07:01:37,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:37,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685704783] [2024-11-09 07:01:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:37,769 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 [2024-11-09 07:01:37,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:37,771 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:37,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (30)] Waiting until timeout for monitored process [2024-11-09 07:01:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:38,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 07:01:38,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:38,714 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 8 treesize of output 1 [2024-11-09 07:01:40,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:40,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:42,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:43,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:44,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:46,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:46,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:46,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2024-11-09 07:01:46,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:01:47,242 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 27 treesize of output 15 [2024-11-09 07:01:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-09 07:01:47,392 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:01:48,736 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:48,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685704783] [2024-11-09 07:01:48,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685704783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:01:48,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2120041312] [2024-11-09 07:01:48,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:48,737 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:01:48,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:01:48,741 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:01:48,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-09 07:01:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:49,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 07:01:49,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:50,053 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 [2024-11-09 07:01:50,921 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 8 treesize of output 1 [2024-11-09 07:01:51,557 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 8 treesize of output 1 [2024-11-09 07:01:52,817 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 8 treesize of output 1 [2024-11-09 07:01:53,670 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 8 treesize of output 1 [2024-11-09 07:01:54,547 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 8 treesize of output 1 [2024-11-09 07:01:55,529 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 8 treesize of output 1 [2024-11-09 07:01:55,805 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 8 treesize of output 1 [2024-11-09 07:01:55,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2024-11-09 07:01:56,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:56,646 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 18 treesize of output 10 [2024-11-09 07:01:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:01:58,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:58,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2120041312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:58,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:01:58,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-09 07:01:58,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339957072] [2024-11-09 07:01:58,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:58,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:01:58,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:58,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:01:58,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=335, Unknown=35, NotChecked=0, Total=462 [2024-11-09 07:01:58,273 INFO L87 Difference]: Start difference. First operand 638 states and 809 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:02:01,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:01,565 INFO L93 Difference]: Finished difference Result 1123 states and 1432 transitions. [2024-11-09 07:02:01,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:02:01,566 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-09 07:02:01,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:01,569 INFO L225 Difference]: With dead ends: 1123 [2024-11-09 07:02:01,569 INFO L226 Difference]: Without dead ends: 669 [2024-11-09 07:02:01,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=124, Invalid=440, Unknown=36, NotChecked=0, Total=600 [2024-11-09 07:02:01,571 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 181 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:01,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 293 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 07:02:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-09 07:02:01,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 638. [2024-11-09 07:02:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 573 states have (on average 1.2547993019197208) internal successors, (719), 573 states have internal predecessors, (719), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 07:02:01,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 807 transitions. [2024-11-09 07:02:01,647 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 807 transitions. Word has length 110 [2024-11-09 07:02:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:01,648 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 807 transitions. [2024-11-09 07:02:01,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:02:01,648 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 807 transitions. [2024-11-09 07:02:01,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 07:02:01,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:01,650 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:01,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (30)] Ended with exit code 0 [2024-11-09 07:02:01,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-09 07:02:02,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:02:02,051 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:02:02,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:02,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1119011455, now seen corresponding path program 1 times [2024-11-09 07:02:02,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:02:02,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703030318] [2024-11-09 07:02:02,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:02,052 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 [2024-11-09 07:02:02,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:02:02,053 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:02:02,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (32)] Waiting until timeout for monitored process [2024-11-09 07:02:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:02,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-09 07:02:02,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:03,860 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 [2024-11-09 07:02:05,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 07:02:07,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 07:02:09,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 07:02:10,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 07:02:12,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 07:02:12,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-09 07:02:12,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 96 [2024-11-09 07:02:12,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2024-11-09 07:02:12,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 [2024-11-09 07:02:13,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 49 [2024-11-09 07:02:13,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 84 [2024-11-09 07:02:15,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 84 [2024-11-09 07:02:23,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:02:23,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 103 [2024-11-09 07:02:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 07:02:23,904 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:02:23,904 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:02:23,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703030318] [2024-11-09 07:02:23,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703030318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:23,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:23,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 07:02:23,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521720359] [2024-11-09 07:02:23,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:23,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:02:23,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:02:23,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:02:23,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:02:23,906 INFO L87 Difference]: Start difference. First operand 638 states and 807 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 07:02:31,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:33,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:35,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:37,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:40,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:42,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:44,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:52,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:52,330 INFO L93 Difference]: Finished difference Result 1139 states and 1443 transitions. [2024-11-09 07:02:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 07:02:52,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-11-09 07:02:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:52,335 INFO L225 Difference]: With dead ends: 1139 [2024-11-09 07:02:52,336 INFO L226 Difference]: Without dead ends: 685 [2024-11-09 07:02:52,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-09 07:02:52,338 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 235 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 9 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:52,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 518 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 738 Invalid, 7 Unknown, 0 Unchecked, 23.9s Time] [2024-11-09 07:02:52,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-11-09 07:02:52,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 638. [2024-11-09 07:02:52,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 573 states have (on average 1.2547993019197208) internal successors, (719), 573 states have internal predecessors, (719), 44 states have call successors, (44), 20 states have call predecessors, (44), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 07:02:52,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 807 transitions. [2024-11-09 07:02:52,423 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 807 transitions. Word has length 110 [2024-11-09 07:02:52,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:52,424 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 807 transitions. [2024-11-09 07:02:52,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 07:02:52,424 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 807 transitions. [2024-11-09 07:02:52,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 07:02:52,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:52,427 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:52,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (32)] Ended with exit code 0 [2024-11-09 07:02:52,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:02:52,628 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:02:52,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:52,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1336054277, now seen corresponding path program 1 times [2024-11-09 07:02:52,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:02:52,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013897880] [2024-11-09 07:02:52,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:52,630 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 [2024-11-09 07:02:52,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:02:52,633 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:02:52,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (33)] Waiting until timeout for monitored process [2024-11-09 07:02:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:53,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:02:53,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:53,076 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 9 treesize of output 3 [2024-11-09 07:02:54,073 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 13 treesize of output 9 [2024-11-09 07:02:54,813 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:02:54,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:02:54,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:02:54,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013897880] [2024-11-09 07:02:54,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013897880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:54,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:54,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 07:02:54,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826439256] [2024-11-09 07:02:54,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:54,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:02:54,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:02:54,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:02:54,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:02:54,816 INFO L87 Difference]: Start difference. First operand 638 states and 807 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:02:57,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:57,614 INFO L93 Difference]: Finished difference Result 1680 states and 2139 transitions. [2024-11-09 07:02:57,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:02:57,615 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-09 07:02:57,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:57,620 INFO L225 Difference]: With dead ends: 1680 [2024-11-09 07:02:57,620 INFO L226 Difference]: Without dead ends: 1226 [2024-11-09 07:02:57,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-09 07:02:57,622 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 128 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:57,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 939 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 07:02:57,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2024-11-09 07:02:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 906. [2024-11-09 07:02:57,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 809 states have (on average 1.242274412855377) internal successors, (1005), 809 states have internal predecessors, (1005), 66 states have call successors, (66), 30 states have call predecessors, (66), 30 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-09 07:02:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1137 transitions. [2024-11-09 07:02:57,743 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1137 transitions. Word has length 110 [2024-11-09 07:02:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:57,743 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1137 transitions. [2024-11-09 07:02:57,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:02:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1137 transitions. [2024-11-09 07:02:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 07:02:57,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:57,746 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:57,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (33)] Ended with exit code 0 [2024-11-09 07:02:57,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:02:57,947 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:02:57,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:57,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1922860291, now seen corresponding path program 1 times [2024-11-09 07:02:57,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:02:57,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359730756] [2024-11-09 07:02:57,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:57,948 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 [2024-11-09 07:02:57,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:02:57,952 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:02:57,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (34)] Waiting until timeout for monitored process [2024-11-09 07:02:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:58,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:02:58,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:01,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2024-11-09 07:03:02,202 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 23 treesize of output 11 [2024-11-09 07:03:06,336 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:03:06,336 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:03:06,336 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:03:06,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359730756] [2024-11-09 07:03:06,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359730756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:06,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:06,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:03:06,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651048408] [2024-11-09 07:03:06,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:06,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:03:06,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:03:06,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:03:06,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-11-09 07:03:06,339 INFO L87 Difference]: Start difference. First operand 906 states and 1137 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:03:10,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:13,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:16,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:18,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:20,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:23,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:23,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:23,941 INFO L93 Difference]: Finished difference Result 1806 states and 2252 transitions. [2024-11-09 07:03:23,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:03:23,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-09 07:03:23,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:23,946 INFO L225 Difference]: With dead ends: 1806 [2024-11-09 07:03:23,947 INFO L226 Difference]: Without dead ends: 1096 [2024-11-09 07:03:23,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=28, Invalid=60, Unknown=2, NotChecked=0, Total=90 [2024-11-09 07:03:23,949 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 120 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:23,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 382 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 409 Invalid, 5 Unknown, 0 Unchecked, 17.2s Time] [2024-11-09 07:03:23,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2024-11-09 07:03:24,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 932. [2024-11-09 07:03:24,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 835 states have (on average 1.2347305389221557) internal successors, (1031), 835 states have internal predecessors, (1031), 66 states have call successors, (66), 30 states have call predecessors, (66), 30 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-09 07:03:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1163 transitions. [2024-11-09 07:03:24,082 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1163 transitions. Word has length 110 [2024-11-09 07:03:24,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:24,083 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1163 transitions. [2024-11-09 07:03:24,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:03:24,083 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1163 transitions. [2024-11-09 07:03:24,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 07:03:24,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:24,085 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:24,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (34)] Forceful destruction successful, exit code 0 [2024-11-09 07:03:24,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:03:24,287 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:03:24,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:24,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1470067783, now seen corresponding path program 1 times [2024-11-09 07:03:24,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:03:24,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938634877] [2024-11-09 07:03:24,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:24,288 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 [2024-11-09 07:03:24,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:03:24,292 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:03:24,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (35)] Waiting until timeout for monitored process [2024-11-09 07:03:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:24,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:03:24,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:28,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 07:03:28,460 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 22 treesize of output 10 [2024-11-09 07:03:28,598 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:03:28,598 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:03:28,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:03:28,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938634877] [2024-11-09 07:03:28,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938634877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:28,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:28,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:03:28,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701863152] [2024-11-09 07:03:28,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:28,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:03:28,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:03:28,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:03:28,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:03:28,600 INFO L87 Difference]: Start difference. First operand 932 states and 1163 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:03:33,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:33,301 INFO L93 Difference]: Finished difference Result 1576 states and 1963 transitions. [2024-11-09 07:03:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:03:33,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-09 07:03:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:33,305 INFO L225 Difference]: With dead ends: 1576 [2024-11-09 07:03:33,305 INFO L226 Difference]: Without dead ends: 1122 [2024-11-09 07:03:33,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:03:33,307 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 91 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:33,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 430 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 07:03:33,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-09 07:03:33,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 958. [2024-11-09 07:03:33,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 861 states have (on average 1.2276422764227641) internal successors, (1057), 861 states have internal predecessors, (1057), 66 states have call successors, (66), 30 states have call predecessors, (66), 30 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-09 07:03:33,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1189 transitions. [2024-11-09 07:03:33,430 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1189 transitions. Word has length 110 [2024-11-09 07:03:33,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:33,432 INFO L471 AbstractCegarLoop]: Abstraction has 958 states and 1189 transitions. [2024-11-09 07:03:33,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:03:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1189 transitions. [2024-11-09 07:03:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 07:03:33,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:33,435 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:33,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (35)] Forceful destruction successful, exit code 0 [2024-11-09 07:03:33,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:03:33,636 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:03:33,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:33,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2056873797, now seen corresponding path program 1 times [2024-11-09 07:03:33,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:03:33,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562589697] [2024-11-09 07:03:33,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:33,638 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 [2024-11-09 07:03:33,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:03:33,641 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:03:33,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (36)] Waiting until timeout for monitored process [2024-11-09 07:03:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:34,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:03:34,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:36,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2024-11-09 07:03:36,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2024-11-09 07:03:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:03:37,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:03:37,179 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:03:37,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562589697] [2024-11-09 07:03:37,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562589697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:37,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:37,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 07:03:37,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233945180] [2024-11-09 07:03:37,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:37,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:03:37,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:03:37,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:03:37,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:03:37,181 INFO L87 Difference]: Start difference. First operand 958 states and 1189 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:03:39,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:45,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:45,023 INFO L93 Difference]: Finished difference Result 1535 states and 1924 transitions. [2024-11-09 07:03:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:03:45,024 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-09 07:03:45,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:45,029 INFO L225 Difference]: With dead ends: 1535 [2024-11-09 07:03:45,029 INFO L226 Difference]: Without dead ends: 1081 [2024-11-09 07:03:45,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-09 07:03:45,032 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 97 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:45,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 646 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 539 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-09 07:03:45,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-09 07:03:45,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1040. [2024-11-09 07:03:45,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 943 states have (on average 1.2290562036055144) internal successors, (1159), 943 states have internal predecessors, (1159), 66 states have call successors, (66), 30 states have call predecessors, (66), 30 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-09 07:03:45,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1291 transitions. [2024-11-09 07:03:45,167 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1291 transitions. Word has length 110 [2024-11-09 07:03:45,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:45,167 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1291 transitions. [2024-11-09 07:03:45,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:03:45,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1291 transitions. [2024-11-09 07:03:45,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 07:03:45,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:45,170 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:45,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (36)] Ended with exit code 0 [2024-11-09 07:03:45,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:03:45,371 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:03:45,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:45,372 INFO L85 PathProgramCache]: Analyzing trace with hash -926154932, now seen corresponding path program 1 times [2024-11-09 07:03:45,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:03:45,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993638719] [2024-11-09 07:03:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:45,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:03:45,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:03:45,376 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:03:45,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (37)] Waiting until timeout for monitored process [2024-11-09 07:03:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:45,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:03:45,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:49,301 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 8 treesize of output 1 [2024-11-09 07:03:50,061 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 8 treesize of output 1 [2024-11-09 07:03:50,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:03:50,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2024-11-09 07:03:51,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2024-11-09 07:03:51,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 27 [2024-11-09 07:03:52,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:03:52,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 63 [2024-11-09 07:03:55,560 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:03:55,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 33 [2024-11-09 07:03:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:03:56,391 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:03:56,391 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:03:56,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993638719] [2024-11-09 07:03:56,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993638719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:56,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:56,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:03:56,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730237014] [2024-11-09 07:03:56,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:56,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:03:56,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:03:56,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:03:56,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:03:56,393 INFO L87 Difference]: Start difference. First operand 1040 states and 1291 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:04:07,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:12,215 INFO L93 Difference]: Finished difference Result 1766 states and 2195 transitions. [2024-11-09 07:04:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:04:12,216 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-09 07:04:12,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:12,221 INFO L225 Difference]: With dead ends: 1766 [2024-11-09 07:04:12,222 INFO L226 Difference]: Without dead ends: 1230 [2024-11-09 07:04:12,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:04:12,224 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 174 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:12,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 316 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 413 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2024-11-09 07:04:12,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2024-11-09 07:04:12,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1054. [2024-11-09 07:04:12,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 957 states have (on average 1.225705329153605) internal successors, (1173), 957 states have internal predecessors, (1173), 66 states have call successors, (66), 30 states have call predecessors, (66), 30 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-09 07:04:12,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1305 transitions. [2024-11-09 07:04:12,351 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1305 transitions. Word has length 111 [2024-11-09 07:04:12,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:12,351 INFO L471 AbstractCegarLoop]: Abstraction has 1054 states and 1305 transitions. [2024-11-09 07:04:12,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:04:12,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1305 transitions. [2024-11-09 07:04:12,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 07:04:12,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:12,353 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:12,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (37)] Ended with exit code 0 [2024-11-09 07:04:12,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:04:12,555 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:04:12,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:12,556 INFO L85 PathProgramCache]: Analyzing trace with hash -311527152, now seen corresponding path program 1 times [2024-11-09 07:04:12,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:04:12,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247527664] [2024-11-09 07:04:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:12,557 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 [2024-11-09 07:04:12,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:04:12,560 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:04:12,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/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 (38)] Waiting until timeout for monitored process [2024-11-09 07:04:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:13,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-09 07:04:13,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:14,558 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 [2024-11-09 07:04:17,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:04:19,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:04:20,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:04:21,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:04:23,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:04:24,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:04:24,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 94 [2024-11-09 07:04:24,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 47 [2024-11-09 07:04:24,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 73 [2024-11-09 07:04:24,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 82 [2024-11-09 07:04:26,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 82 [2024-11-09 07:04:33,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:04:33,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 231 treesize of output 101 [2024-11-09 07:04:33,858 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 89 proven. 27 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-09 07:04:33,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:44,928 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1182 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_property_#t~mem97#1_60| (_ FloatingPoint 8 24))) (let ((.cse3 (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_1182))) (let ((.cse0 (let ((.cse4 (select (select .cse3 |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (not (fp.eq |v_ULTIMATE.start_property_#t~mem97#1_60| .cse0)) (fp.eq (let ((.cse1 (let ((.cse2 (select .cse3 |c_~#double_Array_0~0.base|))) (concat (select .cse2 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse2 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) ((_ to_fp 11 53) c_currentRoundingMode .cse0)))))) is different from false [2024-11-09 07:04:47,351 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1182 (Array (_ BitVec 32) (_ BitVec 32))) (|~#double_Array_0~0.offset| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_127| (_ BitVec 64)) (v_ArrVal_1181 (_ BitVec 32)) (v_ArrVal_1179 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_property_#t~mem97#1_60| (_ FloatingPoint 8 24))) (let ((.cse4 (bvadd |~#double_Array_0~0.offset| (_ bv4 32))) (.cse1 (select |c_#memory_int| |c_~#float_Array_0~0.base|))) (let ((.cse5 (store (store (let ((.cse8 (store |c_#memory_int| |c_~#float_Array_0~0.base| (store .cse1 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|) v_ArrVal_1181)))) (store .cse8 |c_~#double_Array_0~0.base| (store (store (select .cse8 |c_~#double_Array_0~0.base|) |~#double_Array_0~0.offset| ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_127|)) .cse4 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_127|)))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1179) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_1182))) (let ((.cse6 (let ((.cse7 (select (select .cse5 |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (or (not (= ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_127|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_127|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_127|)))) (fp.eq (let ((.cse2 (let ((.cse3 (select .cse5 |c_~#double_Array_0~0.base|))) (concat (select .cse3 .cse4) (select .cse3 |~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) ((_ to_fp 11 53) c_currentRoundingMode .cse6)) (not (fp.eq |v_ULTIMATE.start_property_#t~mem97#1_60| .cse6))))))) is different from false [2024-11-09 07:04:50,266 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1182 (Array (_ BitVec 32) (_ BitVec 32))) (|~#double_Array_0~0.offset| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_127| (_ BitVec 64)) (v_ArrVal_1181 (_ BitVec 32)) (v_ArrVal_1176 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1179 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_property_#t~mem97#1_60| (_ FloatingPoint 8 24))) (let ((.cse9 (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1176))) (let ((.cse3 (bvadd |~#double_Array_0~0.offset| (_ bv4 32))) (.cse6 (select .cse9 |c_~#float_Array_0~0.base|))) (let ((.cse4 (store (store (let ((.cse8 (store .cse6 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|) v_ArrVal_1181))) (store (store |c_#memory_int| |c_~#float_Array_0~0.base| .cse8) |c_~#double_Array_0~0.base| (store (store (select (store .cse9 |c_~#float_Array_0~0.base| .cse8) |c_~#double_Array_0~0.base|) |~#double_Array_0~0.offset| ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_127|)) .cse3 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_127|)))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1179) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_1182))) (let ((.cse0 (let ((.cse7 (select (select .cse4 |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (or (not (fp.eq |v_ULTIMATE.start_property_#t~mem97#1_60| .cse0)) (fp.eq (let ((.cse1 (let ((.cse2 (select .cse4 |c_~#double_Array_0~0.base|))) (concat (select .cse2 .cse3) (select .cse2 |~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (not (= ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse5 (select .cse6 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_127|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_127|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_127|)))))))))) is different from false [2024-11-09 07:04:54,393 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1182 (Array (_ BitVec 32) (_ BitVec 32))) (|~#double_Array_0~0.offset| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_127| (_ BitVec 64)) (v_ArrVal_1175 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1181 (_ BitVec 32)) (v_ArrVal_1176 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1179 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_property_#t~mem97#1_60| (_ FloatingPoint 8 24))) (let ((.cse8 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_1175))) (let ((.cse10 (store .cse8 |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1176))) (let ((.cse2 (bvadd |~#double_Array_0~0.offset| (_ bv4 32))) (.cse6 (select .cse10 |c_~#float_Array_0~0.base|))) (let ((.cse3 (store (store (let ((.cse9 (store .cse6 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|) v_ArrVal_1181))) (store (store .cse8 |c_~#float_Array_0~0.base| .cse9) |c_~#double_Array_0~0.base| (store (store (select (store .cse10 |c_~#float_Array_0~0.base| .cse9) |c_~#double_Array_0~0.base|) |~#double_Array_0~0.offset| ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_127|)) .cse2 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_127|)))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1179) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_1182))) (let ((.cse4 (let ((.cse7 (select (select .cse3 |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (or (fp.eq (let ((.cse0 (let ((.cse1 (select .cse3 |c_~#double_Array_0~0.base|))) (concat (select .cse1 .cse2) (select .cse1 |~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (not (fp.eq |v_ULTIMATE.start_property_#t~mem97#1_60| .cse4)) (not (= ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse5 (select .cse6 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_127|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_127|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_127|))))))))))) is different from false [2024-11-09 07:04:59,129 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:04:59,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247527664] [2024-11-09 07:04:59,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247527664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:59,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [246660112] [2024-11-09 07:04:59,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:59,130 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:04:59,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:04:59,133 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:04:59,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-11-09 07:05:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:00,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-09 07:05:00,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:03,257 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 [2024-11-09 07:05:10,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:05:12,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:05:14,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:05:16,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:05:18,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:05:18,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2024-11-09 07:05:19,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 111 [2024-11-09 07:05:19,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 74 [2024-11-09 07:05:19,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 93 [2024-11-09 07:05:19,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 107 [2024-11-09 07:05:21,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 107 [2024-11-09 07:05:32,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 116 [2024-11-09 07:05:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 89 proven. 27 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-09 07:05:32,868 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:05:55,996 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_3_44 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_132| (_ BitVec 64)) (v_ArrVal_1221 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1218 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (.cse11 (select |c_#memory_int| |c_~#float_Array_0~0.base|)) (.cse8 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|))) (let ((.cse4 (store (store (let ((.cse12 (store |c_#memory_int| |c_~#float_Array_0~0.base| (store .cse11 .cse8 v_skolemized_v_prenex_3_44)))) (store .cse12 |c_~#double_Array_0~0.base| (store (store (select .cse12 |c_~#double_Array_0~0.base|) |c_~#double_Array_0~0.offset| ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_132|)) .cse3 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_132|)))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1218) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_1221))) (let ((.cse7 (select .cse4 |c_~#float_Array_0~0.base|))) (let ((.cse0 (let ((.cse10 (select .cse11 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10)))) (.cse5 (let ((.cse9 (select .cse7 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))))) (or (not (= .cse0 (fp ((_ extract 31 31) v_skolemized_v_prenex_3_44) ((_ extract 30 23) v_skolemized_v_prenex_3_44) ((_ extract 22 0) v_skolemized_v_prenex_3_44)))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_132|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_132|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_132|)) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) (fp.eq (let ((.cse1 (let ((.cse2 (select .cse4 |c_~#double_Array_0~0.base|))) (concat (select .cse2 .cse3) (select .cse2 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) ((_ to_fp 11 53) c_currentRoundingMode .cse5)) (not (fp.eq (let ((.cse6 (select .cse7 .cse8))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))) .cse5)))))))) is different from false [2024-11-09 07:06:00,091 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_3_44 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_132| (_ BitVec 64)) (v_ArrVal_1221 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1215 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1218 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse13 (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1215))) (let ((.cse2 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (.cse10 (select .cse13 |c_~#float_Array_0~0.base|)) (.cse7 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|))) (let ((.cse3 (store (store (let ((.cse12 (store .cse10 .cse7 v_skolemized_v_prenex_3_44))) (store (store |c_#memory_int| |c_~#float_Array_0~0.base| .cse12) |c_~#double_Array_0~0.base| (store (store (select (store .cse13 |c_~#float_Array_0~0.base| .cse12) |c_~#double_Array_0~0.base|) |c_~#double_Array_0~0.offset| ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_132|)) .cse2 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_132|)))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1218) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_1221))) (let ((.cse6 (select .cse3 |c_~#float_Array_0~0.base|))) (let ((.cse4 (let ((.cse11 (select .cse6 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse11) ((_ extract 30 23) .cse11) ((_ extract 22 0) .cse11)))) (.cse8 (let ((.cse9 (select .cse10 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))))) (or (fp.eq (let ((.cse0 (let ((.cse1 (select .cse3 |c_~#double_Array_0~0.base|))) (concat (select .cse1 .cse2) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (not (fp.eq (let ((.cse5 (select .cse6 .cse7))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))) .cse4)) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_132|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_132|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_132|)) ((_ to_fp 11 53) c_currentRoundingMode .cse8))) (not (= .cse8 (fp ((_ extract 31 31) v_skolemized_v_prenex_3_44) ((_ extract 30 23) v_skolemized_v_prenex_3_44) ((_ extract 22 0) v_skolemized_v_prenex_3_44))))))))))) is different from false [2024-11-09 07:06:05,220 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_3_44 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_132| (_ BitVec 64)) (v_ArrVal_1221 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1214 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1215 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1218 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse12 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_1214))) (let ((.cse14 (store .cse12 |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1215))) (let ((.cse7 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (.cse11 (select .cse14 |c_~#float_Array_0~0.base|)) (.cse3 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|))) (let ((.cse8 (store (store (let ((.cse13 (store .cse11 .cse3 v_skolemized_v_prenex_3_44))) (store (store .cse12 |c_~#float_Array_0~0.base| .cse13) |c_~#double_Array_0~0.base| (store (store (select (store .cse14 |c_~#float_Array_0~0.base| .cse13) |c_~#double_Array_0~0.base|) |c_~#double_Array_0~0.offset| ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_132|)) .cse7 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_132|)))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1218) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_1221))) (let ((.cse2 (select .cse8 |c_~#float_Array_0~0.base|))) (let ((.cse0 (let ((.cse10 (select .cse11 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10)))) (.cse4 (let ((.cse9 (select .cse2 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))))) (or (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_132|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_132|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_132|)) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) (not (= .cse0 (fp ((_ extract 31 31) v_skolemized_v_prenex_3_44) ((_ extract 30 23) v_skolemized_v_prenex_3_44) ((_ extract 22 0) v_skolemized_v_prenex_3_44)))) (not (fp.eq (let ((.cse1 (select .cse2 .cse3))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse4)) (fp.eq (let ((.cse5 (let ((.cse6 (select .cse8 |c_~#double_Array_0~0.base|))) (concat (select .cse6 .cse7) (select .cse6 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))) ((_ to_fp 11 53) c_currentRoundingMode .cse4)))))))))) is different from false [2024-11-09 07:06:11,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [246660112] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:11,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379918916] [2024-11-09 07:06:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:11,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:11,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:06:11,060 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:11,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13c7e86a-fff5-480e-9aa6-68f4bd7ed2cc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-09 07:06:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:16,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:06:16,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:22,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 81 [2024-11-09 07:06:22,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 74 [2024-11-09 07:06:22,588 INFO L224 Elim1Store]: Index analysis took 154 ms [2024-11-09 07:06:22,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 [2024-11-09 07:06:22,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 58 [2024-11-09 07:06:22,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 81 [2024-11-09 07:06:25,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 81