./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:52:00,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:52:00,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:52:00,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:52:00,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:52:00,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:52:00,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:52:00,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:52:00,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:52:00,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:52:00,446 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:52:00,447 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:52:00,447 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:52:00,448 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:52:00,449 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:52:00,449 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:52:00,450 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:52:00,450 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:52:00,451 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:52:00,451 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:52:00,452 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:52:00,453 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:52:00,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:52:00,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:52:00,454 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:52:00,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:52:00,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:52:00,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:52:00,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:52:00,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:52:00,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:52:00,468 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:52:00,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:52:00,469 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:52:00,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:52:00,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:52:00,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:52:00,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:52:00,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:52:00,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:52:00,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:52:00,470 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:52:00,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:52:00,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:52:00,471 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:52:00,471 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:52:00,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:52:00,471 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_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 [2023-12-02 18:52:00,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:52:00,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:52:00,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:52:00,714 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:52:00,715 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:52:00,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-12-02 18:52:03,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:52:03,574 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:52:03,575 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-12-02 18:52:03,582 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/data/662d21376/2418250bf1f449cfaebf1a39628b28c5/FLAG769d06baf [2023-12-02 18:52:03,593 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/data/662d21376/2418250bf1f449cfaebf1a39628b28c5 [2023-12-02 18:52:03,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:52:03,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:52:03,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:52:03,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:52:03,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:52:03,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4391d65e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03, skipping insertion in model container [2023-12-02 18:52:03,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,635 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:52:03,767 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_20e41803-4039-4e7b-90ee-1aac74801f7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-12-02 18:52:03,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:52:03,828 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:52:03,841 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_20e41803-4039-4e7b-90ee-1aac74801f7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-12-02 18:52:03,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:52:03,887 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:52:03,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03 WrapperNode [2023-12-02 18:52:03,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:52:03,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:52:03,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:52:03,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:52:03,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,951 INFO L138 Inliner]: procedures = 29, calls = 159, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 438 [2023-12-02 18:52:03,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:52:03,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:52:03,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:52:03,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:52:03,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:03,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:04,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:04,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:52:04,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:52:04,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:52:04,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:52:04,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (1/1) ... [2023-12-02 18:52:04,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:52:04,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:52:04,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:52:04,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:52:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:52:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:52:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 18:52:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 18:52:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 18:52:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 18:52:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:52:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:52:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:52:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:52:04,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:52:04,208 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:52:04,210 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:52:04,621 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:52:05,196 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:52:05,196 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:52:05,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:05 BoogieIcfgContainer [2023-12-02 18:52:05,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:52:05,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:52:05,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:52:05,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:52:05,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:52:03" (1/3) ... [2023-12-02 18:52:05,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723eec61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:05, skipping insertion in model container [2023-12-02 18:52:05,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:03" (2/3) ... [2023-12-02 18:52:05,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723eec61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:05, skipping insertion in model container [2023-12-02 18:52:05,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:05" (3/3) ... [2023-12-02 18:52:05,205 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-26.i [2023-12-02 18:52:05,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:52:05,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:52:05,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:52:05,265 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;@15f06baa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:52:05,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:52:05,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:05,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 18:52:05,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:05,278 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:05,279 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:05,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:05,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1580038406, now seen corresponding path program 1 times [2023-12-02 18:52:05,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:52:05,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743194676] [2023-12-02 18:52:05,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:05,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:52:05,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 18:52:05,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1994098026] [2023-12-02 18:52:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:05,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:52:05,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:52:05,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:52:05,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 18:52:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:52:06,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:52:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:52:14,800 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:52:14,802 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:52:14,803 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:52:14,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:52:15,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:52:15,010 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:52:15,013 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:52:15,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 18:52:15,070 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 18:52:15,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 18:52:15,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 18:52:15,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-12-02 18:52:15,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 18:52:15,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 18:52:15,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-12-02 18:52:15,076 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 18:52:15,076 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-12-02 18:52:15,077 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-12-02 18:52:15,078 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-12-02 18:52:15,078 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 18:52:15,078 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-12-02 18:52:15,079 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 18:52:15,079 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 18:52:15,079 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-12-02 18:52:15,080 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-12-02 18:52:15,080 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-12-02 18:52:15,081 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 18:52:15,081 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 18:52:15,081 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 18:52:15,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-12-02 18:52:15,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-12-02 18:52:15,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-12-02 18:52:15,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-12-02 18:52:15,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-12-02 18:52:15,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-12-02 18:52:15,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 18:52:15,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-12-02 18:52:15,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 18:52:15,086 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 18:52:15,087 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-12-02 18:52:15,088 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-12-02 18:52:15,089 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-12-02 18:52:15,090 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-12-02 18:52:15,091 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-12-02 18:52:15,092 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-12-02 18:52:15,092 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-12-02 18:52:15,093 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-12-02 18:52:15,094 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-12-02 18:52:15,095 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-12-02 18:52:15,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:52:15 BoogieIcfgContainer [2023-12-02 18:52:15,115 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:52:15,116 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:52:15,116 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:52:15,116 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:52:15,117 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:05" (3/4) ... [2023-12-02 18:52:15,119 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:52:15,120 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:52:15,121 INFO L158 Benchmark]: Toolchain (without parser) took 11523.89ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 134.4MB in the beginning and 135.2MB in the end (delta: -814.2kB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2023-12-02 18:52:15,121 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 127.9MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:52:15,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.57ms. Allocated memory is still 165.7MB. Free memory was 134.4MB in the beginning and 119.8MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 18:52:15,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.49ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 116.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 18:52:15,123 INFO L158 Benchmark]: Boogie Preprocessor took 54.90ms. Allocated memory is still 165.7MB. Free memory was 116.2MB in the beginning and 113.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:52:15,124 INFO L158 Benchmark]: RCFGBuilder took 1189.56ms. Allocated memory is still 165.7MB. Free memory was 113.0MB in the beginning and 111.6MB in the end (delta: 1.4MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2023-12-02 18:52:15,125 INFO L158 Benchmark]: TraceAbstraction took 9915.19ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 110.6MB in the beginning and 136.2MB in the end (delta: -25.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-12-02 18:52:15,125 INFO L158 Benchmark]: Witness Printer took 3.76ms. Allocated memory is still 199.2MB. Free memory was 136.2MB in the beginning and 135.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:52:15,129 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 127.9MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.57ms. Allocated memory is still 165.7MB. Free memory was 134.4MB in the beginning and 119.8MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.49ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 116.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.90ms. Allocated memory is still 165.7MB. Free memory was 116.2MB in the beginning and 113.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1189.56ms. Allocated memory is still 165.7MB. Free memory was 113.0MB in the beginning and 111.6MB in the end (delta: 1.4MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9915.19ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 110.6MB in the beginning and 136.2MB in the end (delta: -25.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 3.76ms. Allocated memory is still 199.2MB. Free memory was 136.2MB in the beginning and 135.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 51, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -1; [L23] signed short int* var_1_1_Pointer = &(var_1_1); [L24] signed short int var_1_4 = 1; [L25] signed short int* var_1_4_Pointer = &(var_1_4); [L26] float var_1_12 = 1.125; [L27] float* var_1_12_Pointer = &(var_1_12); [L28] float var_1_13 = 199.5; [L29] float* var_1_13_Pointer = &(var_1_13); [L30] float var_1_14 = 100000000000000.3; [L31] float* var_1_14_Pointer = &(var_1_14); [L32] unsigned char var_1_15 = 64; [L33] unsigned char* var_1_15_Pointer = &(var_1_15); [L34] unsigned char var_1_16 = 2; [L35] unsigned char* var_1_16_Pointer = &(var_1_16); [L36] unsigned long int var_1_17 = 50; [L37] unsigned long int* var_1_17_Pointer = &(var_1_17); [L38] signed long int var_1_19 = -32; [L39] signed long int* var_1_19_Pointer = &(var_1_19); [L40] float var_1_20 = 8.75; [L41] float* var_1_20_Pointer = &(var_1_20); [L42] unsigned char last_1_var_1_15 = 64; [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L78] EXPR \read(var_1_15) [L78] last_1_var_1_15 = var_1_15 [L88] RET updateLastVariables() [L89] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_short() [L63] EXPR \read(var_1_4) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L63] CALL assume_abort_if_not(var_1_4 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_4 >= -32767) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L64] EXPR \read(var_1_4) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L64] CALL assume_abort_if_not(var_1_4 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 <= 32766) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L65] var_1_13 = __VERIFIER_nondet_float() [L66] EXPR \read(var_1_13) [L66] EXPR var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F [L66] EXPR \read(var_1_13) [L66] EXPR var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F [L66] EXPR (var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L66] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L67] var_1_14 = __VERIFIER_nondet_float() [L68] EXPR \read(var_1_14) [L68] EXPR var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F [L68] EXPR \read(var_1_14) [L68] EXPR var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F [L68] EXPR (var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L68] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L69] var_1_16 = __VERIFIER_nondet_uchar() [L70] EXPR \read(var_1_16) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L70] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L71] EXPR \read(var_1_16) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L71] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L72] var_1_19 = __VERIFIER_nondet_long() [L73] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L73] CALL assume_abort_if_not(var_1_19 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_19 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L74] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L74] CALL assume_abort_if_not(var_1_19 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_19 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L75] EXPR \read(var_1_19) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L75] CALL assume_abort_if_not(var_1_19 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_19 != 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L89] RET updateVariables() [L90] CALL step() [L46] EXPR \read(*var_1_13_Pointer) [L46] EXPR \read(*var_1_14_Pointer) [L46] (*(var_1_12_Pointer)) = ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer))) [L47] EXPR \read(*var_1_4_Pointer) [L47] COND FALSE !((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) [L50] EXPR \read(*var_1_13_Pointer) [L50] (*(var_1_20_Pointer)) = (*(var_1_13_Pointer)) [L51] EXPR \read(*var_1_20_Pointer) [L51] EXPR \read(*var_1_20_Pointer) [L51] COND TRUE (*(var_1_20_Pointer)) > (*(var_1_20_Pointer)) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L52] EXPR \read(*var_1_15_Pointer) [L52] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L52] (*(var_1_1_Pointer)) = (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))) [L56] EXPR \read(*var_1_15_Pointer) [L56] EXPR \read(*var_1_15_Pointer) [L56] EXPR \read(*var_1_1_Pointer) [L56] signed long int stepLocal_0 = (*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer))); [L57] EXPR \read(*var_1_15_Pointer) [L57] EXPR \read(*var_1_1_Pointer) [L57] EXPR \read(*var_1_19_Pointer) [L57] COND FALSE !(stepLocal_0 != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) [L90] RET step() [L91] CALL, EXPR property() [L81] EXPR \read(*var_1_20_Pointer) [L81] EXPR \read(*var_1_20_Pointer) [L81] EXPR ((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))))))) [L81] EXPR \read(*var_1_1_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR ((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR \read(*var_1_15_Pointer) [L81] EXPR (((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))) [L81] EXPR ((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) [L81] EXPR ((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))))))) [L81] EXPR (((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer))))) [L81] EXPR ((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1) [L81] EXPR (((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1) [L81] EXPR ((((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1)) && ((*(var_1_20_Pointer)) == ((float) (*(var_1_13_Pointer)))) [L81-L82] return ((((((*(var_1_20_Pointer)) > (*(var_1_20_Pointer))) ? ((*(var_1_1_Pointer)) == ((signed short int) (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : ((*(var_1_1_Pointer)) == ((signed short int) ((((((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) < (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))) ? (((*(var_1_15_Pointer)) - (((((*(var_1_15_Pointer))) > ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer))))))) : (((*(var_1_15_Pointer)) + (((((*(var_1_15_Pointer))) < ((*(var_1_15_Pointer)))) ? ((*(var_1_15_Pointer))) : ((*(var_1_15_Pointer)))))))))))) && ((*(var_1_12_Pointer)) == ((float) ((0.85f - (*(var_1_13_Pointer))) + (*(var_1_14_Pointer)))))) && (((- last_1_var_1_15) >= ((*(var_1_4_Pointer)) / ((((-4) < 0 ) ? -(-4) : (-4))))) ? ((*(var_1_15_Pointer)) == ((unsigned char) (*(var_1_16_Pointer)))) : 1)) && ((((*(var_1_15_Pointer)) + ((*(var_1_15_Pointer)) + (*(var_1_1_Pointer)))) != ((*(var_1_15_Pointer)) * ((*(var_1_1_Pointer)) / (*(var_1_19_Pointer))))) ? ((*(var_1_17_Pointer)) == ((unsigned long int) (((((10u) < (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer))))) ? (10u) : (((*(var_1_1_Pointer)) + (*(var_1_15_Pointer)))))) + (*(var_1_15_Pointer))))) : 1)) && ((*(var_1_20_Pointer)) == ((float) (*(var_1_13_Pointer)))) ; [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=64, var_1_12={6:0}, var_1_12_Pointer={6:0}, var_1_13={7:0}, var_1_13_Pointer={7:0}, var_1_14={8:0}, var_1_14_Pointer={8:0}, var_1_15={9:0}, var_1_15_Pointer={9:0}, var_1_16={10:0}, var_1_16_Pointer={10:0}, var_1_17={11:0}, var_1_17_Pointer={11:0}, var_1_19={12:0}, var_1_19_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_20={13:0}, var_1_20_Pointer={13:0}, var_1_4={5:0}, var_1_4_Pointer={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 1, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 18:52:15,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:52:17,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:52:17,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 18:52:17,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:52:17,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:52:17,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:52:17,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:52:17,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:52:17,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:52:17,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:52:17,167 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:52:17,168 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:52:17,169 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:52:17,169 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:52:17,170 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:52:17,170 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:52:17,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:52:17,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:52:17,172 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:52:17,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:52:17,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:52:17,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:52:17,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:52:17,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:52:17,177 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:52:17,178 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:52:17,178 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:52:17,179 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:52:17,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:52:17,179 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:52:17,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:52:17,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:52:17,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:52:17,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:52:17,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:52:17,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:52:17,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:52:17,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:52:17,182 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:52:17,182 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:52:17,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:52:17,183 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:52:17,183 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:52:17,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:52:17,183 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_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eafc4bfcba9d31705115bfcf6cea5cccc44f2a222fea4448f4711e0f4e7a043 [2023-12-02 18:52:17,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:52:17,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:52:17,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:52:17,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:52:17,485 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:52:17,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-12-02 18:52:20,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:52:20,381 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:52:20,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i [2023-12-02 18:52:20,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/data/2537176d3/becf58b2431349cd8da2e512db895ec7/FLAG81518970c [2023-12-02 18:52:20,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/data/2537176d3/becf58b2431349cd8da2e512db895ec7 [2023-12-02 18:52:20,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:52:20,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:52:20,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:52:20,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:52:20,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:52:20,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1232d95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20, skipping insertion in model container [2023-12-02 18:52:20,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,452 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:52:20,606 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_20e41803-4039-4e7b-90ee-1aac74801f7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-12-02 18:52:20,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:52:20,679 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:52:20,693 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_20e41803-4039-4e7b-90ee-1aac74801f7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-26.i[916,929] [2023-12-02 18:52:20,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:52:20,747 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:52:20,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20 WrapperNode [2023-12-02 18:52:20,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:52:20,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:52:20,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:52:20,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:52:20,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,809 INFO L138 Inliner]: procedures = 36, calls = 159, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 436 [2023-12-02 18:52:20,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:52:20,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:52:20,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:52:20,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:52:20,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:52:20,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:52:20,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:52:20,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:52:20,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (1/1) ... [2023-12-02 18:52:20,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:52:20,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:52:20,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:52:20,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:52:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:52:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 18:52:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 18:52:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:52:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 18:52:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-12-02 18:52:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 18:52:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 18:52:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-02 18:52:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-12-02 18:52:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:52:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:52:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:52:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:52:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 18:52:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 18:52:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 18:52:21,077 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:52:21,079 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:52:22,531 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:52:22,581 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:52:22,581 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:52:22,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:22 BoogieIcfgContainer [2023-12-02 18:52:22,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:52:22,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:52:22,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:52:22,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:52:22,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:52:20" (1/3) ... [2023-12-02 18:52:22,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a69f547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:22, skipping insertion in model container [2023-12-02 18:52:22,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:20" (2/3) ... [2023-12-02 18:52:22,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a69f547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:22, skipping insertion in model container [2023-12-02 18:52:22,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:22" (3/3) ... [2023-12-02 18:52:22,591 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-26.i [2023-12-02 18:52:22,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:52:22,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:52:22,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:52:22,658 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;@3a5de0c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:52:22,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:52:22,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:52:22,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:22,675 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:22,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:22,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:22,681 INFO L85 PathProgramCache]: Analyzing trace with hash 761162639, now seen corresponding path program 1 times [2023-12-02 18:52:22,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:22,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110325984] [2023-12-02 18:52:22,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:22,695 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 [2023-12-02 18:52:22,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:22,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:22,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:23,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:52:23,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-02 18:52:23,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:23,191 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:23,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110325984] [2023-12-02 18:52:23,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110325984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:23,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:23,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:52:23,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066731034] [2023-12-02 18:52:23,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:23,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:52:23,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:23,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:52:23,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:52:23,230 INFO L87 Difference]: Start difference. First operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:52:23,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:23,652 INFO L93 Difference]: Finished difference Result 169 states and 261 transitions. [2023-12-02 18:52:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:52:23,655 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-02 18:52:23,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:23,661 INFO L225 Difference]: With dead ends: 169 [2023-12-02 18:52:23,661 INFO L226 Difference]: Without dead ends: 84 [2023-12-02 18:52:23,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:52:23,668 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:23,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:52:23,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-02 18:52:23,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-02 18:52:23,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 73 states have internal predecessors, (104), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 122 transitions. [2023-12-02 18:52:23,705 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 122 transitions. Word has length 84 [2023-12-02 18:52:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:23,705 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 122 transitions. [2023-12-02 18:52:23,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:52:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 122 transitions. [2023-12-02 18:52:23,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:52:23,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:23,709 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:23,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:23,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:52:23,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:23,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:23,911 INFO L85 PathProgramCache]: Analyzing trace with hash -67682943, now seen corresponding path program 1 times [2023-12-02 18:52:23,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:23,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513417768] [2023-12-02 18:52:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:23,912 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 [2023-12-02 18:52:23,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:23,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:23,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:24,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:24,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:24,347 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-02 18:52:24,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:24,348 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:24,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513417768] [2023-12-02 18:52:24,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513417768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:24,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:24,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:52:24,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108325943] [2023-12-02 18:52:24,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:24,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:52:24,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:24,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:52:24,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:52:24,353 INFO L87 Difference]: Start difference. First operand 84 states and 122 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:52:24,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:24,739 INFO L93 Difference]: Finished difference Result 173 states and 252 transitions. [2023-12-02 18:52:24,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 18:52:24,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-02 18:52:24,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:24,741 INFO L225 Difference]: With dead ends: 173 [2023-12-02 18:52:24,741 INFO L226 Difference]: Without dead ends: 90 [2023-12-02 18:52:24,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:52:24,743 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 10 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:24,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 346 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:52:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-02 18:52:24,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2023-12-02 18:52:24,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 75 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:24,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-12-02 18:52:24,756 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 84 [2023-12-02 18:52:24,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:24,756 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-12-02 18:52:24,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:52:24,757 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-12-02 18:52:24,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:52:24,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:24,759 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:24,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 18:52:24,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:52:24,964 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:24,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:24,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1976140733, now seen corresponding path program 1 times [2023-12-02 18:52:24,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:24,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100882210] [2023-12-02 18:52:24,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:24,966 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 [2023-12-02 18:52:24,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:24,967 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:24,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:25,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:25,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:25,373 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 [2023-12-02 18:52:25,405 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:52:25,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:25,406 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:25,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100882210] [2023-12-02 18:52:25,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100882210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:25,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:25,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:52:25,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756568384] [2023-12-02 18:52:25,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:25,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:52:25,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:25,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:52:25,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:25,409 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:25,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:25,725 INFO L93 Difference]: Finished difference Result 171 states and 247 transitions. [2023-12-02 18:52:25,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:52:25,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-12-02 18:52:25,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:25,727 INFO L225 Difference]: With dead ends: 171 [2023-12-02 18:52:25,727 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 18:52:25,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:25,730 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:25,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 229 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:52:25,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 18:52:25,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-02 18:52:25,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:25,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 123 transitions. [2023-12-02 18:52:25,740 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 123 transitions. Word has length 84 [2023-12-02 18:52:25,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:25,740 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 123 transitions. [2023-12-02 18:52:25,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 123 transitions. [2023-12-02 18:52:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:52:25,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:25,743 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:25,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 18:52:25,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:52:25,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:25,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:25,944 INFO L85 PathProgramCache]: Analyzing trace with hash 629882821, now seen corresponding path program 1 times [2023-12-02 18:52:25,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:25,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849700861] [2023-12-02 18:52:25,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:25,945 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 [2023-12-02 18:52:25,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:25,946 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:25,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:26,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:52:26,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:26,402 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:52:26,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:26,403 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:26,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849700861] [2023-12-02 18:52:26,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849700861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:26,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:26,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:52:26,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927546010] [2023-12-02 18:52:26,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:26,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:52:26,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:26,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:52:26,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:52:26,407 INFO L87 Difference]: Start difference. First operand 86 states and 123 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:26,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:26,800 INFO L93 Difference]: Finished difference Result 180 states and 257 transitions. [2023-12-02 18:52:26,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 18:52:26,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-12-02 18:52:26,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:26,803 INFO L225 Difference]: With dead ends: 180 [2023-12-02 18:52:26,803 INFO L226 Difference]: Without dead ends: 95 [2023-12-02 18:52:26,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:52:26,805 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 10 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:26,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 444 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:52:26,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-02 18:52:26,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2023-12-02 18:52:26,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:26,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2023-12-02 18:52:26,823 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 84 [2023-12-02 18:52:26,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:26,824 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2023-12-02 18:52:26,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:26,824 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2023-12-02 18:52:26,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:52:26,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:26,827 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:26,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:27,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:52:27,033 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:27,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash 629942403, now seen corresponding path program 1 times [2023-12-02 18:52:27,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:27,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242696614] [2023-12-02 18:52:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:27,034 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 [2023-12-02 18:52:27,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:27,036 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:27,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:27,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 18:52:27,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:27,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2023-12-02 18:52:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-02 18:52:27,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:27,497 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:27,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242696614] [2023-12-02 18:52:27,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242696614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:27,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:27,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:52:27,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959745947] [2023-12-02 18:52:27,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:27,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:52:27,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:27,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:52:27,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:52:27,500 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:52:28,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:28,371 INFO L93 Difference]: Finished difference Result 183 states and 259 transitions. [2023-12-02 18:52:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 18:52:28,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-02 18:52:28,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:28,373 INFO L225 Difference]: With dead ends: 183 [2023-12-02 18:52:28,374 INFO L226 Difference]: Without dead ends: 94 [2023-12-02 18:52:28,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-02 18:52:28,375 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 129 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:28,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 346 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 18:52:28,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-02 18:52:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2023-12-02 18:52:28,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 77 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2023-12-02 18:52:28,384 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 84 [2023-12-02 18:52:28,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:28,385 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2023-12-02 18:52:28,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:52:28,385 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2023-12-02 18:52:28,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 18:52:28,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:28,387 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:28,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 18:52:28,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:52:28,587 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:28,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:28,588 INFO L85 PathProgramCache]: Analyzing trace with hash -198303173, now seen corresponding path program 1 times [2023-12-02 18:52:28,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:28,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64668122] [2023-12-02 18:52:28,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:28,589 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 [2023-12-02 18:52:28,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:28,590 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:28,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:28,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 18:52:28,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:29,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-12-02 18:52:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:52:29,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:29,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-12-02 18:52:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:52:29,350 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:29,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64668122] [2023-12-02 18:52:29,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64668122] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:29,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1973515044] [2023-12-02 18:52:29,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:29,351 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:52:29,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:52:29,356 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:52:29,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 18:52:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:30,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 18:52:30,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:30,443 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 [2023-12-02 18:52:30,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-12-02 18:52:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:52:30,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:31,096 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:52:31,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1973515044] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:31,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258050107] [2023-12-02 18:52:31,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:31,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:52:31,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:52:31,100 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:52:31,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 18:52:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:31,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:31,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:31,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-12-02 18:52:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:52:31,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:31,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258050107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:31,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-12-02 18:52:31,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-12-02 18:52:31,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215152333] [2023-12-02 18:52:31,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:31,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:52:31,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:31,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:52:31,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-12-02 18:52:31,495 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:31,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:31,966 INFO L93 Difference]: Finished difference Result 173 states and 245 transitions. [2023-12-02 18:52:31,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:52:31,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2023-12-02 18:52:31,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:31,970 INFO L225 Difference]: With dead ends: 173 [2023-12-02 18:52:31,970 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 18:52:31,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-12-02 18:52:31,972 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:31,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 18:52:31,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 18:52:31,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-02 18:52:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:31,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2023-12-02 18:52:31,980 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 86 [2023-12-02 18:52:31,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:31,980 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2023-12-02 18:52:31,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:31,981 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2023-12-02 18:52:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:52:31,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:31,983 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:31,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-02 18:52:32,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:52:32,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-02 18:52:32,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:52:32,585 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:32,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:32,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1917060794, now seen corresponding path program 1 times [2023-12-02 18:52:32,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:32,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535620596] [2023-12-02 18:52:32,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:32,586 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 [2023-12-02 18:52:32,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:32,587 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:32,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 18:52:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:32,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:32,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:32,988 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 [2023-12-02 18:52:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:52:33,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:33,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:33,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535620596] [2023-12-02 18:52:33,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535620596] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:33,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:33,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:52:33,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445405053] [2023-12-02 18:52:33,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:33,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:52:33,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:33,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:52:33,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:33,012 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:33,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:33,444 INFO L93 Difference]: Finished difference Result 171 states and 241 transitions. [2023-12-02 18:52:33,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:52:33,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-02 18:52:33,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:33,446 INFO L225 Difference]: With dead ends: 171 [2023-12-02 18:52:33,446 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 18:52:33,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:33,447 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 12 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:33,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 208 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:52:33,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 18:52:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-02 18:52:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.36) internal successors, (102), 75 states have internal predecessors, (102), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2023-12-02 18:52:33,453 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 120 transitions. Word has length 91 [2023-12-02 18:52:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:33,453 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 120 transitions. [2023-12-02 18:52:33,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 120 transitions. [2023-12-02 18:52:33,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:52:33,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:33,455 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:33,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-02 18:52:33,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:52:33,656 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:33,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:33,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2051074300, now seen corresponding path program 1 times [2023-12-02 18:52:33,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:33,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594668579] [2023-12-02 18:52:33,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:33,657 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 [2023-12-02 18:52:33,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:33,658 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:33,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:33,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 18:52:33,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:34,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-12-02 18:52:34,163 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:52:34,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:34,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-12-02 18:52:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:52:34,356 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:34,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594668579] [2023-12-02 18:52:34,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594668579] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:34,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2113605071] [2023-12-02 18:52:34,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:34,357 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:52:34,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:52:34,358 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:52:34,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 18:52:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:35,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 18:52:35,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:35,455 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 [2023-12-02 18:52:35,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-12-02 18:52:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:52:35,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:52:36,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2113605071] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:36,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253900259] [2023-12-02 18:52:36,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:36,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:52:36,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:52:36,065 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:52:36,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 18:52:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:36,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:36,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:36,380 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 [2023-12-02 18:52:36,450 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:52:36,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:36,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253900259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:36,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-12-02 18:52:36,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-12-02 18:52:36,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696553199] [2023-12-02 18:52:36,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:36,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:52:36,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:36,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:52:36,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-12-02 18:52:36,452 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:36,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:36,821 INFO L93 Difference]: Finished difference Result 172 states and 240 transitions. [2023-12-02 18:52:36,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:52:36,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-02 18:52:36,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:36,823 INFO L225 Difference]: With dead ends: 172 [2023-12-02 18:52:36,823 INFO L226 Difference]: Without dead ends: 87 [2023-12-02 18:52:36,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-12-02 18:52:36,824 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 2 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:36,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 216 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:52:36,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-02 18:52:36,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2023-12-02 18:52:36,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2023-12-02 18:52:36,831 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 91 [2023-12-02 18:52:36,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:36,831 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2023-12-02 18:52:36,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:36,832 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2023-12-02 18:52:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:52:36,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:36,833 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:36,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 18:52:37,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Ended with exit code 0 [2023-12-02 18:52:37,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 18:52:37,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 18:52:37,437 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:37,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:37,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1426244546, now seen corresponding path program 1 times [2023-12-02 18:52:37,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:37,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581734198] [2023-12-02 18:52:37,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:37,438 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 [2023-12-02 18:52:37,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:37,438 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:37,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 18:52:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:37,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 18:52:37,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:37,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-12-02 18:52:37,905 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:52:37,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:38,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-12-02 18:52:38,078 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:52:38,079 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:38,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581734198] [2023-12-02 18:52:38,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581734198] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:38,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1587404945] [2023-12-02 18:52:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:38,079 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:52:38,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:52:38,080 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:52:38,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 18:52:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:39,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 18:52:39,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:39,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-12-02 18:52:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:52:39,324 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:39,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-12-02 18:52:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:52:39,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1587404945] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:39,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494356040] [2023-12-02 18:52:39,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:39,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:52:39,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:52:39,644 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:52:39,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 18:52:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:39,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:39,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:39,937 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 [2023-12-02 18:52:40,008 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:52:40,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:40,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494356040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:40,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-12-02 18:52:40,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 8, 10, 9] total 20 [2023-12-02 18:52:40,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12728528] [2023-12-02 18:52:40,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:40,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:52:40,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:40,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:52:40,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-12-02 18:52:40,010 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:40,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:40,400 INFO L93 Difference]: Finished difference Result 171 states and 237 transitions. [2023-12-02 18:52:40,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:52:40,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-02 18:52:40,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:40,401 INFO L225 Difference]: With dead ends: 171 [2023-12-02 18:52:40,401 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 18:52:40,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-12-02 18:52:40,402 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 8 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:40,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 208 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:52:40,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 18:52:40,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-02 18:52:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3333333333333333) internal successors, (100), 75 states have internal predecessors, (100), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:40,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-12-02 18:52:40,408 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 91 [2023-12-02 18:52:40,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:40,409 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-12-02 18:52:40,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:40,409 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-12-02 18:52:40,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:52:40,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:40,410 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:40,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 18:52:40,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-02 18:52:40,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 18:52:41,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 18:52:41,011 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:41,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:41,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1645099264, now seen corresponding path program 1 times [2023-12-02 18:52:41,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:41,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890763992] [2023-12-02 18:52:41,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:41,012 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 [2023-12-02 18:52:41,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:41,013 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:41,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-02 18:52:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:41,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 18:52:41,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:41,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-12-02 18:52:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:52:41,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:41,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2023-12-02 18:52:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:52:41,672 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:41,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890763992] [2023-12-02 18:52:41,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890763992] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:41,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1404586537] [2023-12-02 18:52:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:41,673 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:52:41,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:52:41,673 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:52:41,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 18:52:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:42,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 18:52:42,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:42,750 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 [2023-12-02 18:52:42,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-12-02 18:52:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:52:42,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:43,234 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:52:43,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1404586537] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:43,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328767490] [2023-12-02 18:52:43,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:43,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:52:43,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:52:43,235 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:52:43,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 18:52:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:43,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 18:52:43,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:44,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 51 [2023-12-02 18:52:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:52:44,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:52:44,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-12-02 18:52:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:52:44,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328767490] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:52:44,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 18:52:44,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10, 9, 10, 9] total 20 [2023-12-02 18:52:44,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305214591] [2023-12-02 18:52:44,177 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 18:52:44,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 18:52:44,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:44,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 18:52:44,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-12-02 18:52:44,178 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 20 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-02 18:52:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:46,241 INFO L93 Difference]: Finished difference Result 186 states and 253 transitions. [2023-12-02 18:52:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 18:52:46,241 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 91 [2023-12-02 18:52:46,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:46,242 INFO L225 Difference]: With dead ends: 186 [2023-12-02 18:52:46,242 INFO L226 Difference]: Without dead ends: 88 [2023-12-02 18:52:46,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2023-12-02 18:52:46,244 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 124 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:46,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 442 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 18:52:46,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-02 18:52:46,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2023-12-02 18:52:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 75 states have internal predecessors, (98), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:46,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 116 transitions. [2023-12-02 18:52:46,251 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 116 transitions. Word has length 91 [2023-12-02 18:52:46,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:46,251 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 116 transitions. [2023-12-02 18:52:46,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-02 18:52:46,251 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 116 transitions. [2023-12-02 18:52:46,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:52:46,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:46,252 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:46,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 18:52:46,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-02 18:52:46,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 18:52:46,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 18:52:46,853 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:46,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:46,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1618033662, now seen corresponding path program 1 times [2023-12-02 18:52:46,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:46,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894779773] [2023-12-02 18:52:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:46,855 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 [2023-12-02 18:52:46,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:46,855 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:46,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-02 18:52:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:47,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:47,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:47,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-12-02 18:52:47,266 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:52:47,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:47,267 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:47,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894779773] [2023-12-02 18:52:47,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894779773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:47,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:47,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:52:47,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582991044] [2023-12-02 18:52:47,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:47,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:52:47,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:47,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:52:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:47,269 INFO L87 Difference]: Start difference. First operand 86 states and 116 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:47,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:47,627 INFO L93 Difference]: Finished difference Result 169 states and 228 transitions. [2023-12-02 18:52:47,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:52:47,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-02 18:52:47,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:47,628 INFO L225 Difference]: With dead ends: 169 [2023-12-02 18:52:47,629 INFO L226 Difference]: Without dead ends: 84 [2023-12-02 18:52:47,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:47,630 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 36 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:47,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 170 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:52:47,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-02 18:52:47,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-02 18:52:47,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 73 states have internal predecessors, (94), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 112 transitions. [2023-12-02 18:52:47,635 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 112 transitions. Word has length 91 [2023-12-02 18:52:47,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:47,636 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 112 transitions. [2023-12-02 18:52:47,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:47,636 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 112 transitions. [2023-12-02 18:52:47,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 18:52:47,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:47,637 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:47,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-02 18:52:47,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:52:47,838 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:47,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:47,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1552538331, now seen corresponding path program 1 times [2023-12-02 18:52:47,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:47,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420918710] [2023-12-02 18:52:47,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:47,839 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 [2023-12-02 18:52:47,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:47,839 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:47,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-02 18:52:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:48,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:48,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:48,264 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 [2023-12-02 18:52:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:52:48,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:48,277 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:48,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420918710] [2023-12-02 18:52:48,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420918710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:48,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:48,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:52:48,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792413126] [2023-12-02 18:52:48,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:48,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:52:48,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:48,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:52:48,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:48,279 INFO L87 Difference]: Start difference. First operand 84 states and 112 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:48,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:48,599 INFO L93 Difference]: Finished difference Result 167 states and 223 transitions. [2023-12-02 18:52:48,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:52:48,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-12-02 18:52:48,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:48,601 INFO L225 Difference]: With dead ends: 167 [2023-12-02 18:52:48,601 INFO L226 Difference]: Without dead ends: 84 [2023-12-02 18:52:48,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:48,602 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 34 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:48,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 169 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:52:48,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-02 18:52:48,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-02 18:52:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:48,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2023-12-02 18:52:48,606 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 96 [2023-12-02 18:52:48,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:48,606 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2023-12-02 18:52:48,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:48,607 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2023-12-02 18:52:48,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 18:52:48,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:48,607 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:48,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-02 18:52:48,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:52:48,808 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:48,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash 748284259, now seen corresponding path program 1 times [2023-12-02 18:52:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:48,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88749529] [2023-12-02 18:52:48,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:48,809 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 [2023-12-02 18:52:48,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:48,810 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:48,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-02 18:52:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:49,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:52:49,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:52:49,238 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 [2023-12-02 18:52:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:52:49,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:52:49,253 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:52:49,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88749529] [2023-12-02 18:52:49,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88749529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:49,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:49,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:52:49,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198457307] [2023-12-02 18:52:49,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:49,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:52:49,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:52:49,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:52:49,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:49,255 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:49,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:49,633 INFO L93 Difference]: Finished difference Result 187 states and 248 transitions. [2023-12-02 18:52:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:52:49,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-12-02 18:52:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:49,634 INFO L225 Difference]: With dead ends: 187 [2023-12-02 18:52:49,634 INFO L226 Difference]: Without dead ends: 104 [2023-12-02 18:52:49,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:49,635 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 24 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:49,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 199 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:52:49,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-02 18:52:49,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 84. [2023-12-02 18:52:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 73 states have internal predecessors, (92), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:52:49,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 110 transitions. [2023-12-02 18:52:49,639 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 110 transitions. Word has length 96 [2023-12-02 18:52:49,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:49,639 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 110 transitions. [2023-12-02 18:52:49,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:52:49,640 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 110 transitions. [2023-12-02 18:52:49,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 18:52:49,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:49,640 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:49,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-12-02 18:52:49,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:52:49,841 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:49,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:49,841 INFO L85 PathProgramCache]: Analyzing trace with hash -262832991, now seen corresponding path program 1 times [2023-12-02 18:52:49,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:52:49,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17797646] [2023-12-02 18:52:49,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:49,842 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 [2023-12-02 18:52:49,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:52:49,843 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 18:52:49,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e41803-4039-4e7b-90ee-1aac74801f7a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process