./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:15:43,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:15:43,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:15:43,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:15:43,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:15:43,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:15:43,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:15:43,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:15:43,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:15:43,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:15:43,374 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:15:43,375 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:15:43,375 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:15:43,377 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:15:43,377 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:15:43,378 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:15:43,378 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:15:43,379 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:15:43,379 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:15:43,380 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:15:43,381 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:15:43,381 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:15:43,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:15:43,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:15:43,383 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:15:43,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:15:43,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:15:43,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:15:43,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:15:43,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:15:43,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:15:43,388 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:15:43,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:15:43,388 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:15:43,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:15:43,389 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:15:43,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:15:43,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:43,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:15:43,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:15:43,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:15:43,391 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:15:43,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:15:43,392 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:15:43,393 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:15:43,393 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:15:43,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:15:43,393 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_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b [2023-11-24 23:15:43,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:15:43,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:15:43,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:15:43,730 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:15:43,731 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:15:43,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2023-11-24 23:15:46,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:15:47,073 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:15:47,074 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2023-11-24 23:15:47,084 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/data/49a4a45cc/ef2674354320437082369faa129abb94/FLAG7054ffd3d [2023-11-24 23:15:47,100 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/data/49a4a45cc/ef2674354320437082369faa129abb94 [2023-11-24 23:15:47,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:15:47,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:15:47,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:47,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:15:47,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:15:47,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294ade84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47, skipping insertion in model container [2023-11-24 23:15:47,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,160 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:15:47,359 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2023-11-24 23:15:47,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:47,435 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:15:47,448 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2023-11-24 23:15:47,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:47,513 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:15:47,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47 WrapperNode [2023-11-24 23:15:47,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:47,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:47,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:15:47,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:15:47,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,605 INFO L138 Inliner]: procedures = 29, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 392 [2023-11-24 23:15:47,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:47,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:15:47,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:15:47,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:15:47,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:15:47,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:15:47,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:15:47,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:15:47,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (1/1) ... [2023-11-24 23:15:47,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:47,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:15:47,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:15:47,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:15:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:15:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:15:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:15:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:15:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:15:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-24 23:15:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:15:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:15:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:15:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:15:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:15:47,880 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:15:47,883 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:15:48,458 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:15:49,073 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:15:49,074 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:15:49,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:49 BoogieIcfgContainer [2023-11-24 23:15:49,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:15:49,082 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:15:49,082 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:15:49,085 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:15:49,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:15:47" (1/3) ... [2023-11-24 23:15:49,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e42eed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:49, skipping insertion in model container [2023-11-24 23:15:49,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:47" (2/3) ... [2023-11-24 23:15:49,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e42eed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:49, skipping insertion in model container [2023-11-24 23:15:49,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:49" (3/3) ... [2023-11-24 23:15:49,092 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-97.i [2023-11-24 23:15:49,116 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:15:49,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:15:49,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:15:49,194 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b27be4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:15:49,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:15:49,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-24 23:15:49,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-24 23:15:49,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:49,213 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:49,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:15:49,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:49,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1606996482, now seen corresponding path program 1 times [2023-11-24 23:15:49,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:49,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025676119] [2023-11-24 23:15:49,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:49,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:15:51,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:15:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:15:53,363 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:15:53,365 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:15:53,367 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:15:53,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:15:53,376 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:15:53,382 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:15:53,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-24 23:15:53,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-24 23:15:53,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-24 23:15:53,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-24 23:15:53,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-24 23:15:53,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-24 23:15:53,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-24 23:15:53,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-24 23:15:53,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-24 23:15:53,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-24 23:15:53,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-24 23:15:53,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-24 23:15:53,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-11-24 23:15:53,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated [2023-11-24 23:15:53,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-24 23:15:53,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-24 23:15:53,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-24 23:15:53,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated [2023-11-24 23:15:53,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-24 23:15:53,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-24 23:15:53,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-24 23:15:53,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated [2023-11-24 23:15:53,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-24 23:15:53,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-24 23:15:53,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-24 23:15:53,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-24 23:15:53,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-24 23:15:53,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-24 23:15:53,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-24 23:15:53,494 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-24 23:15:53,494 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-11-24 23:15:53,495 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-11-24 23:15:53,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-24 23:15:53,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-24 23:15:53,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-24 23:15:53,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-24 23:15:53,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-24 23:15:53,505 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-24 23:15:53,506 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-24 23:15:53,506 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-24 23:15:53,506 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-24 23:15:53,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-24 23:15:53,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-24 23:15:53,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-24 23:15:53,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-24 23:15:53,509 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-24 23:15:53,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:15:53 BoogieIcfgContainer [2023-11-24 23:15:53,529 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:15:53,530 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:15:53,530 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:15:53,530 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:15:53,531 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:49" (3/4) ... [2023-11-24 23:15:53,533 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:15:53,535 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:15:53,536 INFO L158 Benchmark]: Toolchain (without parser) took 6431.71ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 142.5MB in the beginning and 70.4MB in the end (delta: 72.1MB). Peak memory consumption was 120.9MB. Max. memory is 16.1GB. [2023-11-24 23:15:53,537 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory was 73.7MB in the beginning and 73.5MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:15:53,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.14ms. Allocated memory is still 180.4MB. Free memory was 142.5MB in the beginning and 127.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:15:53,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.53ms. Allocated memory is still 180.4MB. Free memory was 127.8MB in the beginning and 124.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:15:53,539 INFO L158 Benchmark]: Boogie Preprocessor took 57.75ms. Allocated memory is still 180.4MB. Free memory was 124.6MB in the beginning and 121.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:15:53,540 INFO L158 Benchmark]: RCFGBuilder took 1405.94ms. Allocated memory is still 180.4MB. Free memory was 121.5MB in the beginning and 106.1MB in the end (delta: 15.4MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2023-11-24 23:15:53,541 INFO L158 Benchmark]: TraceAbstraction took 4447.44ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 105.2MB in the beginning and 70.4MB in the end (delta: 34.8MB). Peak memory consumption was 99.6MB. Max. memory is 16.1GB. [2023-11-24 23:15:53,541 INFO L158 Benchmark]: Witness Printer took 5.12ms. Allocated memory is still 228.6MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:15:53,545 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory was 73.7MB in the beginning and 73.5MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.14ms. Allocated memory is still 180.4MB. Free memory was 142.5MB in the beginning and 127.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.53ms. Allocated memory is still 180.4MB. Free memory was 127.8MB in the beginning and 124.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.75ms. Allocated memory is still 180.4MB. Free memory was 124.6MB in the beginning and 121.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1405.94ms. Allocated memory is still 180.4MB. Free memory was 121.5MB in the beginning and 106.1MB in the end (delta: 15.4MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4447.44ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 105.2MB in the beginning and 70.4MB in the end (delta: 34.8MB). Peak memory consumption was 99.6MB. Max. memory is 16.1GB. * Witness Printer took 5.12ms. Allocated memory is still 228.6MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of bitwiseOr at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 1, 0 }; [L25-L27] float float_Array_0[2] = { 32.5, 127.4 }; [L28-L30] signed char signed_char_Array_0[3] = { 16, 100, -1 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 100, 20113, 128, 32, 16 }; [L34-L36] unsigned short int unsigned_short_int_Array_0[2] = { 10, 256 }; [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] FCALL updateLastVariables() [L108] CALL updateVariables() [L70] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L71] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L72] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L73] BOOL_unsigned_char_Array_0[2] = __VERIFIER_nondet_uchar() [L74] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L75] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L76] float_Array_0[1] = __VERIFIER_nondet_float() [L77] EXPR float_Array_0[1] [L77] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L77] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) [L77] EXPR float_Array_0[1] [L77] EXPR float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F [L77] EXPR float_Array_0[1] [L77] EXPR float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F [L77] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L77] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L78] signed_char_Array_0[0] = __VERIFIER_nondet_char() [L79] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L79] CALL assume_abort_if_not(signed_char_Array_0[0] >= -31) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(signed_char_Array_0[0] >= -31) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L80] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L80] CALL assume_abort_if_not(signed_char_Array_0[0] <= 32) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(signed_char_Array_0[0] <= 32) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L81] signed_char_Array_0[2] = __VERIFIER_nondet_char() [L82] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L82] CALL assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L83] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L83] CALL assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L84] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L85] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L85] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L86] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L86] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L87] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L88] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L88] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L89] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L89] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L90] signed_short_int_Array_0[3] = __VERIFIER_nondet_short() [L91] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L91] CALL assume_abort_if_not(signed_short_int_Array_0[3] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(signed_short_int_Array_0[3] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L92] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L92] CALL assume_abort_if_not(signed_short_int_Array_0[3] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(signed_short_int_Array_0[3] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L93] unsigned_short_int_Array_0[1] = __VERIFIER_nondet_ushort() [L94] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L94] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L95] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L95] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L108] RET updateVariables() [L109] CALL step() [L40] EXPR unsigned_short_int_Array_0[1] [L40] unsigned_short_int_Array_0[0] = unsigned_short_int_Array_0[1] [L41] EXPR float_Array_0[1] [L41] float_Array_0[0] = float_Array_0[1] [L42] EXPR signed_char_Array_0[0] [L42] signed_short_int_Array_0[2] = signed_char_Array_0[0] [L43] EXPR float_Array_0[0] [L43] COND TRUE 127.5f > float_Array_0[0] [L44] EXPR BOOL_unsigned_char_Array_0[2] [L44] EXPR BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1] [L44] EXPR BOOL_unsigned_char_Array_0[1] [L44] EXPR BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1] [L44] BOOL_unsigned_char_Array_0[0] = (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]) [L48] EXPR unsigned_short_int_Array_0[0] [L48] EXPR signed_short_int_Array_0[3] [L48] COND FALSE !(unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) [L51] EXPR signed_short_int_Array_0[2] [L51] EXPR (32 * -25) | signed_short_int_Array_0[2] [L51] EXPR signed_char_Array_0[2] [L51] COND FALSE !(((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) [L57] BOOL_unsigned_char_Array_0[0] [L57] COND TRUE BOOL_unsigned_char_Array_0[0] [L58] EXPR signed_char_Array_0[1] [L58] EXPR signed_short_int_Array_0[2] [L58] COND TRUE signed_char_Array_0[1] > signed_short_int_Array_0[2] [L59] BOOL_unsigned_char_Array_0[0] [L59] COND TRUE BOOL_unsigned_char_Array_0[0] [L60] EXPR signed_short_int_Array_0[3] [L60] EXPR signed_short_int_Array_0[1] [L60] EXPR signed_short_int_Array_0[0] [L60] signed_short_int_Array_0[4] = (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])) [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR BOOL_unsigned_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1 [L100] EXPR signed_char_Array_0[1] [L100] EXPR signed_short_int_Array_0[2] [L100] EXPR (signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8)) [L100] EXPR BOOL_unsigned_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0])) [L100] EXPR signed_short_int_Array_0[4] [L100] EXPR signed_short_int_Array_0[3] [L100] EXPR signed_short_int_Array_0[1] [L100] EXPR signed_short_int_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0])) [L100] EXPR (signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8)) [L100] EXPR BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1 [L100] EXPR (BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1)) [L100] EXPR unsigned_short_int_Array_0[0] [L100] EXPR signed_short_int_Array_0[3] [L100] EXPR (unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1) [L100] EXPR signed_short_int_Array_0[2] [L100] EXPR (32 * -25) | signed_short_int_Array_0[2] [L100] EXPR signed_char_Array_0[2] [L100] EXPR (((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1 [L100] EXPR BOOL_unsigned_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1 [L100] EXPR signed_char_Array_0[1] [L100] EXPR signed_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1 [L100] EXPR (((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1 [L100] EXPR (unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1) [L100] EXPR (BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1)) [L100] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2])))) [L100] EXPR (((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1])) [L100] EXPR ((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1])) [L100] EXPR (((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (signed_short_int_Array_0[2] == ((signed short int) signed_char_Array_0[0])) [L100-L101] return (((((BOOL_unsigned_char_Array_0[0] ? ((signed_char_Array_0[1] > signed_short_int_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (signed_short_int_Array_0[3] - (signed_short_int_Array_0[1] - signed_short_int_Array_0[0])))) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_short_int_Array_0[0]))) : (signed_short_int_Array_0[4] == ((signed short int) 8))) : 1) && ((unsigned_short_int_Array_0[0] == signed_short_int_Array_0[3]) ? (signed_char_Array_0[1] == ((signed char) (signed_char_Array_0[2] + (signed_char_Array_0[0] + -25)))) : ((((32 * -25) | signed_short_int_Array_0[2]) >= signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[0] ? (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) : 1) : 1))) && ((127.5f > float_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] == ((unsigned char) (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[0] == ((unsigned char) ((float_Array_0[0] >= float_Array_0[0]) || BOOL_unsigned_char_Array_0[2]))))) && (unsigned_short_int_Array_0[0] == ((unsigned short int) unsigned_short_int_Array_0[1]))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (signed_short_int_Array_0[2] == ((signed short int) signed_char_Array_0[0])) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_short_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:15:53,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:15:56,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:15:56,467 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:15:56,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:15:56,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:15:56,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:15:56,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:15:56,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:15:56,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:15:56,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:15:56,529 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:15:56,530 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:15:56,530 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:15:56,532 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:15:56,533 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:15:56,533 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:15:56,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:15:56,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:15:56,536 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:15:56,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:15:56,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:15:56,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:15:56,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:15:56,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:15:56,540 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:15:56,541 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:15:56,541 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:15:56,542 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:15:56,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:15:56,543 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:15:56,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:15:56,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:15:56,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:15:56,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:15:56,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:56,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:15:56,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:15:56,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:15:56,547 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:15:56,549 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:15:56,549 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:15:56,550 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:15:56,550 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:15:56,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:15:56,551 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b [2023-11-24 23:15:56,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:15:56,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:15:56,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:15:56,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:15:56,950 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:15:56,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2023-11-24 23:16:00,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:16:00,351 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:16:00,353 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2023-11-24 23:16:00,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/data/b788fff3d/f9b55fb4c39746a1b3fb385030463198/FLAG5379f025d [2023-11-24 23:16:00,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/data/b788fff3d/f9b55fb4c39746a1b3fb385030463198 [2023-11-24 23:16:00,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:16:00,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:16:00,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:16:00,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:16:00,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:16:00,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:00,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31202351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00, skipping insertion in model container [2023-11-24 23:16:00,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:00,440 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:16:00,639 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2023-11-24 23:16:00,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:16:00,766 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:16:00,782 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2023-11-24 23:16:00,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:16:00,876 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:16:00,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00 WrapperNode [2023-11-24 23:16:00,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:16:00,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:16:00,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:16:00,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:16:00,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:00,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:00,975 INFO L138 Inliner]: procedures = 33, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 366 [2023-11-24 23:16:00,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:16:00,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:16:00,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:16:00,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:16:00,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:00,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:01,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:01,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:01,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:01,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:01,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:01,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:01,088 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:16:01,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:16:01,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:16:01,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:16:01,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (1/1) ... [2023-11-24 23:16:01,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:16:01,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:16:01,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:16:01,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:16:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:16:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:16:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-24 23:16:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:16:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-24 23:16:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-24 23:16:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 23:16:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-24 23:16:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:16:01,233 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:16:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:16:01,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:16:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-24 23:16:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-24 23:16:01,361 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:16:01,366 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:16:02,061 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:16:02,111 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:16:02,111 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:16:02,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:16:02 BoogieIcfgContainer [2023-11-24 23:16:02,112 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:16:02,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:16:02,115 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:16:02,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:16:02,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:16:00" (1/3) ... [2023-11-24 23:16:02,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b75236d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:16:02, skipping insertion in model container [2023-11-24 23:16:02,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:16:00" (2/3) ... [2023-11-24 23:16:02,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b75236d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:16:02, skipping insertion in model container [2023-11-24 23:16:02,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:16:02" (3/3) ... [2023-11-24 23:16:02,123 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-97.i [2023-11-24 23:16:02,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:16:02,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:16:02,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:16:02,255 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56ac3ff8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:16:02,256 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:16:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 74 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-24 23:16:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-24 23:16:02,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:02,282 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:02,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:02,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:02,290 INFO L85 PathProgramCache]: Analyzing trace with hash 884915707, now seen corresponding path program 1 times [2023-11-24 23:16:02,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:02,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011702264] [2023-11-24 23:16:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:02,308 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:02,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:02,311 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:02,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 23:16:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:02,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:16:02,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:02,717 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-11-24 23:16:02,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:02,718 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:02,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011702264] [2023-11-24 23:16:02,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011702264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:02,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:16:02,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:16:02,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586995980] [2023-11-24 23:16:02,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:02,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:16:02,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:02,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:16:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:16:02,779 INFO L87 Difference]: Start difference. First operand has 93 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 74 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-24 23:16:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:02,876 INFO L93 Difference]: Finished difference Result 183 states and 291 transitions. [2023-11-24 23:16:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:16:02,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2023-11-24 23:16:02,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:02,890 INFO L225 Difference]: With dead ends: 183 [2023-11-24 23:16:02,890 INFO L226 Difference]: Without dead ends: 91 [2023-11-24 23:16:02,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:16:02,900 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:02,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:16:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-24 23:16:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-24 23:16:02,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 72 states have (on average 1.375) internal successors, (99), 72 states have internal predecessors, (99), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-24 23:16:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 133 transitions. [2023-11-24 23:16:02,963 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 133 transitions. Word has length 129 [2023-11-24 23:16:02,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:02,963 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 133 transitions. [2023-11-24 23:16:02,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-24 23:16:02,964 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions. [2023-11-24 23:16:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-24 23:16:02,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:02,968 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:02,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:16:03,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:03,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:03,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:03,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1373466921, now seen corresponding path program 1 times [2023-11-24 23:16:03,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:03,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612490453] [2023-11-24 23:16:03,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:03,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:03,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:03,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:03,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 23:16:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:03,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:16:03,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-24 23:16:03,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:03,605 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:03,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612490453] [2023-11-24 23:16:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612490453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:03,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:16:03,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:16:03,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430515168] [2023-11-24 23:16:03,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:03,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:16:03,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:03,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:16:03,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:16:03,610 INFO L87 Difference]: Start difference. First operand 91 states and 133 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:03,717 INFO L93 Difference]: Finished difference Result 204 states and 299 transitions. [2023-11-24 23:16:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:16:03,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2023-11-24 23:16:03,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:03,721 INFO L225 Difference]: With dead ends: 204 [2023-11-24 23:16:03,721 INFO L226 Difference]: Without dead ends: 114 [2023-11-24 23:16:03,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:16:03,724 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 49 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:03,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 408 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:16:03,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-24 23:16:03,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 93. [2023-11-24 23:16:03,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-24 23:16:03,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2023-11-24 23:16:03,739 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 129 [2023-11-24 23:16:03,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:03,741 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2023-11-24 23:16:03,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:03,741 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2023-11-24 23:16:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-24 23:16:03,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:03,744 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:03,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:16:03,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:03,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:03,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:03,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1026092023, now seen corresponding path program 1 times [2023-11-24 23:16:03,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:03,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593697342] [2023-11-24 23:16:03,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:03,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:03,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:03,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:03,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 23:16:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:04,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:16:04,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-24 23:16:04,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:04,313 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:04,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593697342] [2023-11-24 23:16:04,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593697342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:04,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:16:04,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:16:04,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124946349] [2023-11-24 23:16:04,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:04,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:16:04,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:04,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:16:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:16:04,317 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:04,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:04,924 INFO L93 Difference]: Finished difference Result 248 states and 356 transitions. [2023-11-24 23:16:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:16:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-24 23:16:04,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:04,931 INFO L225 Difference]: With dead ends: 248 [2023-11-24 23:16:04,931 INFO L226 Difference]: Without dead ends: 156 [2023-11-24 23:16:04,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:16:04,934 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:04,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 419 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 23:16:04,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-24 23:16:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 132. [2023-11-24 23:16:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 108 states have (on average 1.3518518518518519) internal successors, (146), 109 states have internal predecessors, (146), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:16:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 188 transitions. [2023-11-24 23:16:04,963 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 188 transitions. Word has length 131 [2023-11-24 23:16:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:04,964 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 188 transitions. [2023-11-24 23:16:04,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 188 transitions. [2023-11-24 23:16:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-24 23:16:04,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:04,969 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:04,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:16:05,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:05,175 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:05,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:05,176 INFO L85 PathProgramCache]: Analyzing trace with hash 640329486, now seen corresponding path program 1 times [2023-11-24 23:16:05,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:05,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368529807] [2023-11-24 23:16:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:05,178 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 [2023-11-24 23:16:05,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:05,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:05,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-24 23:16:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:05,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:16:05,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:05,493 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-24 23:16:05,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:05,494 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:05,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368529807] [2023-11-24 23:16:05,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368529807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:05,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:16:05,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:16:05,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576672061] [2023-11-24 23:16:05,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:05,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:16:05,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:05,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:16:05,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:16:05,508 INFO L87 Difference]: Start difference. First operand 132 states and 188 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:05,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:05,607 INFO L93 Difference]: Finished difference Result 287 states and 409 transitions. [2023-11-24 23:16:05,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:16:05,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-24 23:16:05,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:05,614 INFO L225 Difference]: With dead ends: 287 [2023-11-24 23:16:05,614 INFO L226 Difference]: Without dead ends: 156 [2023-11-24 23:16:05,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:16:05,621 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 21 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:05,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 378 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:16:05,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-24 23:16:05,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 136. [2023-11-24 23:16:05,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 112 states have (on average 1.3392857142857142) internal successors, (150), 113 states have internal predecessors, (150), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:16:05,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 192 transitions. [2023-11-24 23:16:05,658 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 192 transitions. Word has length 131 [2023-11-24 23:16:05,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:05,660 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 192 transitions. [2023-11-24 23:16:05,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 192 transitions. [2023-11-24 23:16:05,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-24 23:16:05,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:05,663 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:05,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-24 23:16:05,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:05,870 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:05,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:05,871 INFO L85 PathProgramCache]: Analyzing trace with hash -169017140, now seen corresponding path program 1 times [2023-11-24 23:16:05,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:05,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545987236] [2023-11-24 23:16:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:05,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:05,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:05,874 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:05,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-24 23:16:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:06,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:16:06,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-24 23:16:06,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:06,216 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:06,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545987236] [2023-11-24 23:16:06,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545987236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:06,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:16:06,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:16:06,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223029069] [2023-11-24 23:16:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:06,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:16:06,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:06,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:16:06,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:16:06,219 INFO L87 Difference]: Start difference. First operand 136 states and 192 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:06,373 INFO L93 Difference]: Finished difference Result 297 states and 419 transitions. [2023-11-24 23:16:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:16:06,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-24 23:16:06,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:06,381 INFO L225 Difference]: With dead ends: 297 [2023-11-24 23:16:06,384 INFO L226 Difference]: Without dead ends: 162 [2023-11-24 23:16:06,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:16:06,386 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 24 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:06,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 499 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:16:06,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-24 23:16:06,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 140. [2023-11-24 23:16:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 116 states have (on average 1.3275862068965518) internal successors, (154), 117 states have internal predecessors, (154), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:16:06,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 196 transitions. [2023-11-24 23:16:06,413 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 196 transitions. Word has length 131 [2023-11-24 23:16:06,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:06,414 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 196 transitions. [2023-11-24 23:16:06,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:06,414 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 196 transitions. [2023-11-24 23:16:06,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-24 23:16:06,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:06,417 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:06,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:16:06,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:06,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:06,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:06,618 INFO L85 PathProgramCache]: Analyzing trace with hash -111758838, now seen corresponding path program 1 times [2023-11-24 23:16:06,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:06,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613099148] [2023-11-24 23:16:06,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:06,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:06,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:06,620 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:06,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-24 23:16:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:06,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:16:06,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:07,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-24 23:16:07,637 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 [2023-11-24 23:16:07,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 23:16:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-24 23:16:07,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:07,672 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:07,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613099148] [2023-11-24 23:16:07,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613099148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:07,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:16:07,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 23:16:07,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775928120] [2023-11-24 23:16:07,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:07,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 23:16:07,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:07,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 23:16:07,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:16:07,675 INFO L87 Difference]: Start difference. First operand 140 states and 196 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:08,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:08,396 INFO L93 Difference]: Finished difference Result 301 states and 422 transitions. [2023-11-24 23:16:08,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:16:08,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-24 23:16:08,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:08,399 INFO L225 Difference]: With dead ends: 301 [2023-11-24 23:16:08,399 INFO L226 Difference]: Without dead ends: 162 [2023-11-24 23:16:08,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:16:08,400 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 95 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:08,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 322 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-24 23:16:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-24 23:16:08,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 147. [2023-11-24 23:16:08,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 123 states have (on average 1.3333333333333333) internal successors, (164), 124 states have internal predecessors, (164), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:16:08,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 206 transitions. [2023-11-24 23:16:08,417 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 206 transitions. Word has length 131 [2023-11-24 23:16:08,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:08,418 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 206 transitions. [2023-11-24 23:16:08,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 206 transitions. [2023-11-24 23:16:08,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-24 23:16:08,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:08,421 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:08,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-24 23:16:08,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:08,628 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:08,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1917197172, now seen corresponding path program 1 times [2023-11-24 23:16:08,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:08,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010235366] [2023-11-24 23:16:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:08,630 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 [2023-11-24 23:16:08,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:08,631 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:08,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-24 23:16:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:08,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-24 23:16:08,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:10,000 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 31 treesize of output 24 [2023-11-24 23:16:10,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-24 23:16:10,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-24 23:16:11,156 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 31 treesize of output 24 [2023-11-24 23:16:11,576 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 31 treesize of output 24 [2023-11-24 23:16:11,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-24 23:16:12,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-24 23:16:12,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 24 [2023-11-24 23:16:12,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2023-11-24 23:16:13,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2023-11-24 23:16:13,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:16:13,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2023-11-24 23:16:13,102 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 148 proven. 78 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2023-11-24 23:16:13,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:16:13,175 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_210 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_210) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))) is different from false [2023-11-24 23:16:13,639 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:13,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010235366] [2023-11-24 23:16:13,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010235366] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:16:13,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1279443907] [2023-11-24 23:16:13,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:13,640 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:16:13,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:16:13,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:16:13,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-24 23:16:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:14,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 23:16:14,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:14,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:16:15,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 23:16:15,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 23:16:15,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 23:16:16,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 23:16:16,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 23:16:16,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 23:16:17,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-24 23:16:17,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2023-11-24 23:16:17,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-11-24 23:16:17,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-11-24 23:16:17,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-24 23:16:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 132 proven. 42 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-24 23:16:17,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:16:18,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1279443907] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:16:18,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948965572] [2023-11-24 23:16:18,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:18,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:16:18,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:16:18,449 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:16:18,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-24 23:16:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:18,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-24 23:16:18,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:18,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:16:18,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 35 [2023-11-24 23:16:19,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:16:19,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 51 [2023-11-24 23:16:19,249 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-24 23:16:19,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:19,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948965572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:19,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:16:19,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15, 11] total 31 [2023-11-24 23:16:19,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998754142] [2023-11-24 23:16:19,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:19,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:16:19,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:19,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:16:19,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1175, Unknown=23, NotChecked=70, Total=1406 [2023-11-24 23:16:19,253 INFO L87 Difference]: Start difference. First operand 147 states and 206 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:20,437 INFO L93 Difference]: Finished difference Result 351 states and 489 transitions. [2023-11-24 23:16:20,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-24 23:16:20,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-11-24 23:16:20,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:20,440 INFO L225 Difference]: With dead ends: 351 [2023-11-24 23:16:20,441 INFO L226 Difference]: Without dead ends: 205 [2023-11-24 23:16:20,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 404 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=168, Invalid=1453, Unknown=23, NotChecked=78, Total=1722 [2023-11-24 23:16:20,443 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 150 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:20,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 659 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 23:16:20,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-24 23:16:20,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 157. [2023-11-24 23:16:20,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 133 states have (on average 1.3233082706766917) internal successors, (176), 134 states have internal predecessors, (176), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:16:20,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 218 transitions. [2023-11-24 23:16:20,458 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 218 transitions. Word has length 131 [2023-11-24 23:16:20,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:20,458 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 218 transitions. [2023-11-24 23:16:20,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 218 transitions. [2023-11-24 23:16:20,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-24 23:16:20,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:20,461 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:20,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-24 23:16:20,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-24 23:16:20,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-24 23:16:21,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt [2023-11-24 23:16:21,065 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:21,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:21,066 INFO L85 PathProgramCache]: Analyzing trace with hash 305710175, now seen corresponding path program 1 times [2023-11-24 23:16:21,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:21,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251694215] [2023-11-24 23:16:21,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:21,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:21,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:21,069 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:21,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-24 23:16:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:21,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:16:21,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:21,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-11-24 23:16:21,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2023-11-24 23:16:21,408 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-24 23:16:21,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:21,408 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251694215] [2023-11-24 23:16:21,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251694215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:21,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:16:21,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 23:16:21,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838429487] [2023-11-24 23:16:21,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:21,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:16:21,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:21,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:16:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:16:21,411 INFO L87 Difference]: Start difference. First operand 157 states and 218 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:22,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:22,110 INFO L93 Difference]: Finished difference Result 431 states and 598 transitions. [2023-11-24 23:16:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 23:16:22,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2023-11-24 23:16:22,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:22,114 INFO L225 Difference]: With dead ends: 431 [2023-11-24 23:16:22,114 INFO L226 Difference]: Without dead ends: 275 [2023-11-24 23:16:22,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-24 23:16:22,116 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 169 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:22,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 620 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 23:16:22,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-11-24 23:16:22,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 161. [2023-11-24 23:16:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 138 states have internal predecessors, (182), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:16:22,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 224 transitions. [2023-11-24 23:16:22,131 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 224 transitions. Word has length 132 [2023-11-24 23:16:22,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:22,140 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 224 transitions. [2023-11-24 23:16:22,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:22,141 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 224 transitions. [2023-11-24 23:16:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-24 23:16:22,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:22,143 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:22,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-24 23:16:22,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:22,349 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:22,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:22,350 INFO L85 PathProgramCache]: Analyzing trace with hash -80052362, now seen corresponding path program 1 times [2023-11-24 23:16:22,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:22,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588138487] [2023-11-24 23:16:22,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:22,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:22,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:22,351 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:22,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-24 23:16:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:22,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 23:16:22,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:23,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-24 23:16:23,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-24 23:16:23,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-24 23:16:23,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 23:16:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-24 23:16:23,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:23,754 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:23,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588138487] [2023-11-24 23:16:23,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588138487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:23,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:16:23,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 23:16:23,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365363027] [2023-11-24 23:16:23,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:23,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:16:23,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:23,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:16:23,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:16:23,757 INFO L87 Difference]: Start difference. First operand 161 states and 224 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:24,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:24,552 INFO L93 Difference]: Finished difference Result 391 states and 541 transitions. [2023-11-24 23:16:24,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:16:24,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2023-11-24 23:16:24,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:24,555 INFO L225 Difference]: With dead ends: 391 [2023-11-24 23:16:24,555 INFO L226 Difference]: Without dead ends: 231 [2023-11-24 23:16:24,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-24 23:16:24,557 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 254 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:24,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 342 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-24 23:16:24,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-24 23:16:24,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 175. [2023-11-24 23:16:24,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 151 states have (on average 1.3377483443708609) internal successors, (202), 152 states have internal predecessors, (202), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:16:24,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 244 transitions. [2023-11-24 23:16:24,573 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 244 transitions. Word has length 132 [2023-11-24 23:16:24,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:24,574 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 244 transitions. [2023-11-24 23:16:24,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:24,574 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 244 transitions. [2023-11-24 23:16:24,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-24 23:16:24,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:24,576 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:24,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-24 23:16:24,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:24,784 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:24,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:24,784 INFO L85 PathProgramCache]: Analyzing trace with hash 568482962, now seen corresponding path program 1 times [2023-11-24 23:16:24,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:24,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61748814] [2023-11-24 23:16:24,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:24,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:24,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:24,786 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:24,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-24 23:16:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:25,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:16:25,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:25,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:16:25,178 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 37 treesize of output 31 [2023-11-24 23:16:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-24 23:16:25,220 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:16:25,221 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:16:25,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61748814] [2023-11-24 23:16:25,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61748814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:16:25,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:16:25,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:16:25,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724059116] [2023-11-24 23:16:25,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:16:25,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:16:25,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:16:25,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:16:25,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:16:25,223 INFO L87 Difference]: Start difference. First operand 175 states and 244 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:27,240 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] [2023-11-24 23:16:30,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:16:32,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:16:34,531 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] [2023-11-24 23:16:34,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:16:34,554 INFO L93 Difference]: Finished difference Result 475 states and 660 transitions. [2023-11-24 23:16:34,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:16:34,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2023-11-24 23:16:34,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:16:34,558 INFO L225 Difference]: With dead ends: 475 [2023-11-24 23:16:34,558 INFO L226 Difference]: Without dead ends: 301 [2023-11-24 23:16:34,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:16:34,560 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 76 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:16:34,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 497 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 223 Invalid, 4 Unknown, 0 Unchecked, 9.3s Time] [2023-11-24 23:16:34,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-11-24 23:16:34,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 207. [2023-11-24 23:16:34,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 183 states have (on average 1.3442622950819672) internal successors, (246), 184 states have internal predecessors, (246), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:16:34,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2023-11-24 23:16:34,577 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 132 [2023-11-24 23:16:34,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:16:34,578 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2023-11-24 23:16:34,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-24 23:16:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2023-11-24 23:16:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-24 23:16:34,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:16:34,580 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:16:34,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-24 23:16:34,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:34,787 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:16:34,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:16:34,787 INFO L85 PathProgramCache]: Analyzing trace with hash -214065868, now seen corresponding path program 1 times [2023-11-24 23:16:34,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:16:34,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604476404] [2023-11-24 23:16:34,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:16:34,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:16:34,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:16:34,789 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:16:34,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1c0ff7c-d742-47e6-a9a8-ab040822b682/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-24 23:16:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:16:35,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-24 23:16:35,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:16:35,394 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 [2023-11-24 23:16:36,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-24 23:16:36,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-24 23:16:36,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-24 23:16:37,090 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