./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.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_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:37:37,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:37:37,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:37:37,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:37:37,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:37:37,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:37:37,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:37:37,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:37:37,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:37:37,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:37:37,694 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:37:37,694 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:37:37,695 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:37:37,695 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:37:37,696 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:37:37,696 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:37:37,697 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:37:37,697 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:37:37,698 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:37:37,698 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:37:37,699 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:37:37,701 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:37:37,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:37:37,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:37:37,702 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:37:37,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:37:37,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:37:37,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:37:37,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:37:37,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:37:37,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:37:37,705 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:37:37,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:37:37,705 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:37:37,705 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:37:37,705 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:37:37,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:37:37,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:37:37,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:37:37,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:37:37,706 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:37:37,707 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:37:37,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:37:37,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:37:37,707 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:37:37,708 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:37:37,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:37:37,708 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_20c3fedf-1469-420f-a555-a3a4d28ece9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa [2023-12-02 16:37:37,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:37:37,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:37:37,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:37:37,933 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:37:37,934 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:37:37,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2023-12-02 16:37:40,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:37:40,866 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:37:40,867 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2023-12-02 16:37:40,876 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/data/9aa62f4e8/4c2e45cf00cf4161b060e27c3f77fe94/FLAGc1dc30819 [2023-12-02 16:37:40,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/data/9aa62f4e8/4c2e45cf00cf4161b060e27c3f77fe94 [2023-12-02 16:37:40,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:37:40,891 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:37:40,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:37:40,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:37:40,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:37:40,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:37:40" (1/1) ... [2023-12-02 16:37:40,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdda7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:40, skipping insertion in model container [2023-12-02 16:37:40,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:37:40" (1/1) ... [2023-12-02 16:37:40,925 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:37:41,042 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_20c3fedf-1469-420f-a555-a3a4d28ece9e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2023-12-02 16:37:41,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:37:41,107 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:37:41,117 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_20c3fedf-1469-420f-a555-a3a4d28ece9e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2023-12-02 16:37:41,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:37:41,170 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:37:41,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41 WrapperNode [2023-12-02 16:37:41,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:37:41,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:37:41,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:37:41,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:37:41,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,235 INFO L138 Inliner]: procedures = 29, calls = 177, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 506 [2023-12-02 16:37:41,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:37:41,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:37:41,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:37:41,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:37:41,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:37:41,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:37:41,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:37:41,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:37:41,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (1/1) ... [2023-12-02 16:37:41,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:37:41,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:37:41,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:37:41,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:37:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:37:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:37:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 16:37:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 16:37:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 16:37:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 16:37:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:37:41,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:37:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:37:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:37:41,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:37:41,494 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:37:41,496 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:37:41,995 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:37:42,554 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:37:42,555 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:37:42,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:37:42 BoogieIcfgContainer [2023-12-02 16:37:42,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:37:42,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:37:42,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:37:42,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:37:42,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:37:40" (1/3) ... [2023-12-02 16:37:42,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521f9d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:37:42, skipping insertion in model container [2023-12-02 16:37:42,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:41" (2/3) ... [2023-12-02 16:37:42,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521f9d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:37:42, skipping insertion in model container [2023-12-02 16:37:42,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:37:42" (3/3) ... [2023-12-02 16:37:42,565 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-64.i [2023-12-02 16:37:42,584 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:37:42,584 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:37:42,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:37:42,641 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;@71ef3396, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:37:42,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:37:42,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:37:42,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 16:37:42,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:37:42,657 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:42,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:37:42,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:37:42,663 INFO L85 PathProgramCache]: Analyzing trace with hash -527500160, now seen corresponding path program 1 times [2023-12-02 16:37:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:37:42,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420361226] [2023-12-02 16:37:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:37:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:37:42,917 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:37:42,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111000939] [2023-12-02 16:37:42,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:37:42,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:37:42,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:37:42,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:37:42,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:37:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:37:46,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:37:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:37:51,259 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:37:51,261 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:37:51,263 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:37:51,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:37:51,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:37:51,485 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:37:51,488 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:37:51,578 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-12-02 16:37:51,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-12-02 16:37:51,581 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 16:37:51,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 16:37:51,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-12-02 16:37:51,587 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-12-02 16:37:51,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-12-02 16:37:51,592 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-12-02 16:37:51,593 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-12-02 16:37:51,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-12-02 16:37:51,596 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-12-02 16:37:51,597 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-12-02 16:37:51,598 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-12-02 16:37:51,600 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-12-02 16:37:51,601 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-12-02 16:37:51,601 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short49 could not be translated [2023-12-02 16:37:51,601 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 16:37:51,602 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-12-02 16:37:51,602 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 16:37:51,602 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-12-02 16:37:51,602 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-12-02 16:37:51,603 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 16:37:51,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-12-02 16:37:51,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 16:37:51,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-12-02 16:37:51,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short49 could not be translated [2023-12-02 16:37:51,605 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-12-02 16:37:51,605 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-12-02 16:37:51,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 16:37:51,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short57 could not be translated [2023-12-02 16:37:51,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 16:37:51,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 16:37:51,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-12-02 16:37:51,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated [2023-12-02 16:37:51,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 16:37:51,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated [2023-12-02 16:37:51,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short57 could not be translated [2023-12-02 16:37:51,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 16:37:51,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-12-02 16:37:51,609 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 16:37:51,609 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 16:37:51,609 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 16:37:51,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short65 could not be translated [2023-12-02 16:37:51,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-12-02 16:37:51,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 16:37:51,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-12-02 16:37:51,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated [2023-12-02 16:37:51,611 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-12-02 16:37:51,611 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-12-02 16:37:51,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-12-02 16:37:51,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short65 could not be translated [2023-12-02 16:37:51,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-12-02 16:37:51,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 16:37:51,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated [2023-12-02 16:37:51,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-12-02 16:37:51,613 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-12-02 16:37:51,613 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-12-02 16:37:51,613 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated [2023-12-02 16:37:51,614 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short73 could not be translated [2023-12-02 16:37:51,614 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated [2023-12-02 16:37:51,614 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-12-02 16:37:51,614 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated [2023-12-02 16:37:51,614 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-12-02 16:37:51,615 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated [2023-12-02 16:37:51,615 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short73 could not be translated [2023-12-02 16:37:51,615 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-12-02 16:37:51,615 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated [2023-12-02 16:37:51,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-12-02 16:37:51,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-12-02 16:37:51,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated [2023-12-02 16:37:51,617 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem79 could not be translated [2023-12-02 16:37:51,617 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem79 could not be translated [2023-12-02 16:37:51,618 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated [2023-12-02 16:37:51,619 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated [2023-12-02 16:37:51,619 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated [2023-12-02 16:37:51,620 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated [2023-12-02 16:37:51,621 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-12-02 16:37:51,621 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-12-02 16:37:51,622 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-12-02 16:37:51,623 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-12-02 16:37:51,623 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem86 could not be translated [2023-12-02 16:37:51,624 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem86 could not be translated [2023-12-02 16:37:51,625 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated [2023-12-02 16:37:51,626 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated [2023-12-02 16:37:51,627 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem89 could not be translated [2023-12-02 16:37:51,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem89 could not be translated [2023-12-02 16:37:51,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-12-02 16:37:51,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-12-02 16:37:51,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:37:51 BoogieIcfgContainer [2023-12-02 16:37:51,653 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:37:51,654 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:37:51,654 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:37:51,654 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:37:51,655 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:37:42" (3/4) ... [2023-12-02 16:37:51,657 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:37:51,658 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:37:51,659 INFO L158 Benchmark]: Toolchain (without parser) took 10768.06ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 125.5MB in the beginning and 86.4MB in the end (delta: 39.1MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2023-12-02 16:37:51,659 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:37:51,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.18ms. Allocated memory is still 167.8MB. Free memory was 125.3MB in the beginning and 110.8MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 16:37:51,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.89ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 107.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:37:51,661 INFO L158 Benchmark]: Boogie Preprocessor took 54.09ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 103.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:37:51,662 INFO L158 Benchmark]: RCFGBuilder took 1264.68ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 103.8MB in the beginning and 75.7MB in the end (delta: 28.1MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2023-12-02 16:37:51,662 INFO L158 Benchmark]: TraceAbstraction took 9094.40ms. Allocated memory is still 218.1MB. Free memory was 75.7MB in the beginning and 87.5MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:37:51,663 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 218.1MB. Free memory was 87.5MB in the beginning and 86.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:37:51,666 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 96.5MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.18ms. Allocated memory is still 167.8MB. Free memory was 125.3MB in the beginning and 110.8MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.89ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 107.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.09ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 103.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1264.68ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 103.8MB in the beginning and 75.7MB in the end (delta: 28.1MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9094.40ms. Allocated memory is still 218.1MB. Free memory was 75.7MB in the beginning and 87.5MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 218.1MB. Free memory was 87.5MB in the beginning and 86.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem86 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem86 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 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 60, overapproximation of someUnaryDOUBLEoperation at line 32, overapproximation of bitwiseAnd at line 70, overapproximation of someBinaryDOUBLEComparisonOperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.9; [L23] double* var_1_1_Pointer = &(var_1_1); [L24] unsigned long int var_1_2 = 128; [L25] unsigned long int* var_1_2_Pointer = &(var_1_2); [L26] unsigned long int var_1_3 = 2941876006; [L27] unsigned long int* var_1_3_Pointer = &(var_1_3); [L28] unsigned long int var_1_5 = 256; [L29] unsigned long int* var_1_5_Pointer = &(var_1_5); [L30] float var_1_6 = 63.5; [L31] float* var_1_6_Pointer = &(var_1_6); [L32] float var_1_7 = -0.151; [L33] float* var_1_7_Pointer = &(var_1_7); [L34] float var_1_8 = 0.8; [L35] float* var_1_8_Pointer = &(var_1_8); [L36] double var_1_9 = 9.5; [L37] double* var_1_9_Pointer = &(var_1_9); [L38] unsigned char var_1_10 = 0; [L39] unsigned char* var_1_10_Pointer = &(var_1_10); [L40] unsigned char var_1_11 = 0; [L41] unsigned char* var_1_11_Pointer = &(var_1_11); [L42] unsigned char var_1_12 = 0; [L43] unsigned char* var_1_12_Pointer = &(var_1_12); [L44] signed short int var_1_13 = -2; [L45] signed short int* var_1_13_Pointer = &(var_1_13); [L46] unsigned char var_1_16 = 10; [L47] unsigned char* var_1_16_Pointer = &(var_1_16); [L48] unsigned short int var_1_17 = 8; [L49] unsigned short int* var_1_17_Pointer = &(var_1_17); [L50] unsigned char var_1_18 = 16; [L51] unsigned char* var_1_18_Pointer = &(var_1_18); [L52] unsigned char last_1_var_1_16 = 10; [L127] isInitial = 1 [L128] FCALL initially() [L129] COND TRUE 1 [L130] CALL updateLastVariables() [L120] EXPR \read(var_1_16) [L120] last_1_var_1_16 = var_1_16 [L130] RET updateLastVariables() [L131] CALL updateVariables() [L87] var_1_2 = __VERIFIER_nondet_ulong() [L88] EXPR \read(var_1_2) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L88] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L89] EXPR \read(var_1_2) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L89] CALL assume_abort_if_not(var_1_2 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_2 <= 4294967295) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L90] var_1_3 = __VERIFIER_nondet_ulong() [L91] EXPR \read(var_1_3) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L91] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L92] EXPR \read(var_1_3) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L92] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L93] var_1_5 = __VERIFIER_nondet_ulong() [L94] EXPR \read(var_1_5) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L94] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L95] EXPR \read(var_1_5) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L95] CALL assume_abort_if_not(var_1_5 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_5 <= 4294967295) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L96] EXPR \read(var_1_5) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L96] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L97] var_1_6 = __VERIFIER_nondet_float() [L98] EXPR \read(var_1_6) [L98] EXPR var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F [L98] EXPR \read(var_1_6) [L98] EXPR var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F [L98] EXPR (var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L98] CALL assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L99] var_1_7 = __VERIFIER_nondet_float() [L100] EXPR \read(var_1_7) [L100] EXPR var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F [L100] EXPR \read(var_1_7) [L100] EXPR var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F [L100] EXPR (var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L100] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L101] var_1_8 = __VERIFIER_nondet_float() [L102] EXPR \read(var_1_8) [L102] EXPR var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F [L102] EXPR (var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F ) [L102] EXPR \read(var_1_8) [L102] EXPR var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F [L102] EXPR \read(var_1_8) [L102] EXPR var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F [L102] EXPR (var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L102] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103] var_1_9 = __VERIFIER_nondet_double() [L104] EXPR \read(var_1_9) [L104] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F [L104] EXPR (var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) [L104] EXPR \read(var_1_9) [L104] EXPR var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F [L104] EXPR \read(var_1_9) [L104] EXPR var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F [L104] EXPR (var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L104] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L105] var_1_11 = __VERIFIER_nondet_uchar() [L106] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L106] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L107] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L107] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L108] var_1_12 = __VERIFIER_nondet_uchar() [L109] EXPR \read(var_1_12) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L109] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L110] EXPR \read(var_1_12) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L110] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L111] var_1_17 = __VERIFIER_nondet_ushort() [L112] EXPR \read(var_1_17) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L112] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L113] EXPR \read(var_1_17) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L113] CALL assume_abort_if_not(var_1_17 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_17 <= 65535) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L114] EXPR \read(var_1_17) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L114] CALL assume_abort_if_not(var_1_17 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_17 != 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L115] var_1_18 = __VERIFIER_nondet_uchar() [L116] EXPR \read(var_1_18) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L116] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L117] EXPR \read(var_1_18) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L117] CALL assume_abort_if_not(var_1_18 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_18 <= 254) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L131] RET updateVariables() [L132] CALL step() [L56] signed long int stepLocal_1 = last_1_var_1_16; [L57] EXPR \read(*var_1_3_Pointer) [L57] unsigned long int stepLocal_0 = (*(var_1_3_Pointer)); [L58] EXPR \read(*var_1_3_Pointer) [L58] COND TRUE stepLocal_1 <= ((*(var_1_3_Pointer)) - last_1_var_1_16) [L59] EXPR \read(*var_1_5_Pointer) [L59] EXPR (((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16) [L59] COND FALSE !(stepLocal_0 < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) [L64] EXPR \read(*var_1_9_Pointer) [L64] (*(var_1_1_Pointer)) = (*(var_1_9_Pointer)) [L67] EXPR \read(*var_1_1_Pointer) [L67] EXPR \read(*var_1_1_Pointer) [L67] COND TRUE (*(var_1_1_Pointer)) < (*(var_1_1_Pointer)) [L68] EXPR \read(*var_1_11_Pointer) [L68] EXPR (*(var_1_11_Pointer)) && (*(var_1_12_Pointer)) [L68] EXPR \read(*var_1_12_Pointer) [L68] EXPR (*(var_1_11_Pointer)) && (*(var_1_12_Pointer)) [L68] (*(var_1_10_Pointer)) = (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))) [L70] EXPR \read(*var_1_2_Pointer) [L70] EXPR \read(*var_1_5_Pointer) [L70] EXPR \read(*var_1_17_Pointer) [L70] EXPR (*(var_1_2_Pointer)) & ((*(var_1_5_Pointer)) / (*(var_1_17_Pointer))) [L70] unsigned long int stepLocal_2 = (*(var_1_2_Pointer)) & ((*(var_1_5_Pointer)) / (*(var_1_17_Pointer))); [L71] EXPR \read(*var_1_3_Pointer) [L71] COND TRUE stepLocal_2 > (*(var_1_3_Pointer)) [L72] EXPR \read(*var_1_10_Pointer) [L72] COND TRUE ! (*(var_1_10_Pointer)) [L73] EXPR \read(*var_1_18_Pointer) [L73] (*(var_1_16_Pointer)) = (*(var_1_18_Pointer)) [L80] EXPR \read(*var_1_10_Pointer) [L80] COND FALSE !((*(var_1_10_Pointer))) [L132] RET step() [L133] CALL, EXPR property() [L123] EXPR \read(*var_1_3_Pointer) [L123] EXPR (last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1 [L123] EXPR \read(*var_1_3_Pointer) [L123] EXPR \read(*var_1_5_Pointer) [L123] EXPR (((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16) [L123] EXPR ((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) [L123] EXPR \read(*var_1_1_Pointer) [L123] EXPR \read(*var_1_9_Pointer) [L123] EXPR ((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) [L123] EXPR (last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1 [L123] EXPR ((last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1) && (((*(var_1_1_Pointer)) < (*(var_1_1_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))))) : 1) [L123] EXPR (((last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1) && (((*(var_1_1_Pointer)) < (*(var_1_1_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))))) : 1)) && ((*(var_1_10_Pointer)) ? (((*(var_1_12_Pointer)) || ((*(var_1_1_Pointer)) < ((*(var_1_1_Pointer)) * (*(var_1_1_Pointer))))) ? ((*(var_1_13_Pointer)) == ((signed short int) ((*(var_1_16_Pointer)) + (*(var_1_16_Pointer))))) : 1) : 1) [L123] EXPR ((((last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1) && (((*(var_1_1_Pointer)) < (*(var_1_1_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))))) : 1)) && ((*(var_1_10_Pointer)) ? (((*(var_1_12_Pointer)) || ((*(var_1_1_Pointer)) < ((*(var_1_1_Pointer)) * (*(var_1_1_Pointer))))) ? ((*(var_1_13_Pointer)) == ((signed short int) ((*(var_1_16_Pointer)) + (*(var_1_16_Pointer))))) : 1) : 1)) && ((((*(var_1_2_Pointer)) & ((*(var_1_5_Pointer)) / (*(var_1_17_Pointer)))) > (*(var_1_3_Pointer))) ? ((! (*(var_1_10_Pointer))) ? ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer)))) : ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer))))) : ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer))))) [L123-L124] return ((((last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1) && (((*(var_1_1_Pointer)) < (*(var_1_1_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))))) : 1)) && ((*(var_1_10_Pointer)) ? (((*(var_1_12_Pointer)) || ((*(var_1_1_Pointer)) < ((*(var_1_1_Pointer)) * (*(var_1_1_Pointer))))) ? ((*(var_1_13_Pointer)) == ((signed short int) ((*(var_1_16_Pointer)) + (*(var_1_16_Pointer))))) : 1) : 1)) && ((((*(var_1_2_Pointer)) & ((*(var_1_5_Pointer)) / (*(var_1_17_Pointer)))) > (*(var_1_3_Pointer))) ? ((! (*(var_1_10_Pointer))) ? ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer)))) : ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer))))) : ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer))))) ; [L133] RET, EXPR property() [L133] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 1, TraceHistogramMax: 20, 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=49occurred 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, 3.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 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 16:37:51,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:37:53,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:37:53,762 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 16:37:53,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:37:53,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:37:53,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:37:53,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:37:53,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:37:53,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:37:53,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:37:53,797 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:37:53,798 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:37:53,798 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:37:53,799 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:37:53,799 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:37:53,800 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:37:53,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:37:53,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:37:53,801 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:37:53,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:37:53,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:37:53,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:37:53,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:37:53,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:37:53,804 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:37:53,805 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:37:53,805 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:37:53,806 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:37:53,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:37:53,806 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:37:53,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:37:53,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:37:53,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:37:53,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:37:53,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:37:53,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:37:53,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:37:53,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:37:53,809 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:37:53,809 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:37:53,809 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:37:53,809 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:37:53,810 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:37:53,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:37:53,810 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_20c3fedf-1469-420f-a555-a3a4d28ece9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa [2023-12-02 16:37:54,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:37:54,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:37:54,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:37:54,128 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:37:54,128 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:37:54,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2023-12-02 16:37:56,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:37:57,122 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:37:57,122 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2023-12-02 16:37:57,135 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/data/e4a7295eb/249b8f06e75e4bdeb7a44e2d8a4dd599/FLAGef8e26ade [2023-12-02 16:37:57,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/data/e4a7295eb/249b8f06e75e4bdeb7a44e2d8a4dd599 [2023-12-02 16:37:57,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:37:57,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:37:57,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:37:57,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:37:57,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:37:57,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45deae39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57, skipping insertion in model container [2023-12-02 16:37:57,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,186 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:37:57,334 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_20c3fedf-1469-420f-a555-a3a4d28ece9e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2023-12-02 16:37:57,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:37:57,404 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:37:57,417 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_20c3fedf-1469-420f-a555-a3a4d28ece9e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2023-12-02 16:37:57,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:37:57,475 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:37:57,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57 WrapperNode [2023-12-02 16:37:57,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:37:57,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:37:57,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:37:57,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:37:57,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,539 INFO L138 Inliner]: procedures = 39, calls = 177, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 492 [2023-12-02 16:37:57,540 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:37:57,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:37:57,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:37:57,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:37:57,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:37:57,599 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:37:57,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:37:57,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:37:57,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (1/1) ... [2023-12-02 16:37:57,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:37:57,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:37:57,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:37:57,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:37:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:37:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-12-02 16:37:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-12-02 16:37:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 16:37:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 16:37:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:37:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 16:37:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-12-02 16:37:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-12-02 16:37:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 16:37:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 16:37:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-02 16:37:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-12-02 16:37:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:37:57,678 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:37:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:37:57,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:37:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 16:37:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 16:37:57,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 16:37:57,836 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:37:57,838 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:38:01,763 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:38:01,809 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:38:01,810 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:38:01,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:38:01 BoogieIcfgContainer [2023-12-02 16:38:01,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:38:01,812 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:38:01,812 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:38:01,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:38:01,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:37:57" (1/3) ... [2023-12-02 16:38:01,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e73ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:38:01, skipping insertion in model container [2023-12-02 16:38:01,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:37:57" (2/3) ... [2023-12-02 16:38:01,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e73ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:38:01, skipping insertion in model container [2023-12-02 16:38:01,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:38:01" (3/3) ... [2023-12-02 16:38:01,817 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-64.i [2023-12-02 16:38:01,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:38:01,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:38:01,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:38:01,879 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;@2447db55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:38:01,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:38:01,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 91 states have (on average 1.4615384615384615) internal successors, (133), 92 states have internal predecessors, (133), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:38:01,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-02 16:38:01,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:38:01,899 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:01,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:38:01,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:38:01,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1349204830, now seen corresponding path program 1 times [2023-12-02 16:38:01,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:38:01,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753607834] [2023-12-02 16:38:01,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:01,915 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 16:38:01,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:38:01,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:01,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:02,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 16:38:02,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:02,428 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-12-02 16:38:02,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:38:02,429 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:38:02,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753607834] [2023-12-02 16:38:02,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753607834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:38:02,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:38:02,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:38:02,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770429363] [2023-12-02 16:38:02,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:38:02,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:38:02,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:38:02,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:38:02,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:38:02,469 INFO L87 Difference]: Start difference. First operand has 114 states, 91 states have (on average 1.4615384615384615) internal successors, (133), 92 states have internal predecessors, (133), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:38:02,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:38:02,524 INFO L93 Difference]: Finished difference Result 225 states and 364 transitions. [2023-12-02 16:38:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:38:02,527 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2023-12-02 16:38:02,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:38:02,536 INFO L225 Difference]: With dead ends: 225 [2023-12-02 16:38:02,536 INFO L226 Difference]: Without dead ends: 112 [2023-12-02 16:38:02,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 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 16:38:02,544 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:38:02,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:38:02,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-02 16:38:02,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2023-12-02 16:38:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 90 states have (on average 1.4222222222222223) internal successors, (128), 90 states have internal predecessors, (128), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:38:02,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 168 transitions. [2023-12-02 16:38:02,593 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 168 transitions. Word has length 152 [2023-12-02 16:38:02,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:38:02,593 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 168 transitions. [2023-12-02 16:38:02,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:38:02,594 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 168 transitions. [2023-12-02 16:38:02,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-02 16:38:02,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:38:02,598 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:02,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:02,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:02,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:38:02,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:38:02,805 INFO L85 PathProgramCache]: Analyzing trace with hash -792130114, now seen corresponding path program 1 times [2023-12-02 16:38:02,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:38:02,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869137756] [2023-12-02 16:38:02,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:02,807 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 16:38:02,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:38:02,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:02,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:03,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:38:03,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:03,244 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-12-02 16:38:03,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:38:03,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:38:03,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869137756] [2023-12-02 16:38:03,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869137756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:38:03,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:38:03,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:38:03,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189366310] [2023-12-02 16:38:03,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:38:03,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:38:03,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:38:03,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:38:03,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:38:03,248 INFO L87 Difference]: Start difference. First operand 112 states and 168 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:38:03,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:38:03,356 INFO L93 Difference]: Finished difference Result 229 states and 344 transitions. [2023-12-02 16:38:03,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:38:03,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2023-12-02 16:38:03,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:38:03,359 INFO L225 Difference]: With dead ends: 229 [2023-12-02 16:38:03,359 INFO L226 Difference]: Without dead ends: 118 [2023-12-02 16:38:03,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 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 16:38:03,362 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 10 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:38:03,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 481 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:38:03,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-02 16:38:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2023-12-02 16:38:03,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:38:03,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 170 transitions. [2023-12-02 16:38:03,380 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 170 transitions. Word has length 152 [2023-12-02 16:38:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:38:03,380 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 170 transitions. [2023-12-02 16:38:03,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:38:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 170 transitions. [2023-12-02 16:38:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-02 16:38:03,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:38:03,384 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:03,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:03,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:03,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:38:03,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:38:03,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1823171012, now seen corresponding path program 1 times [2023-12-02 16:38:03,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:38:03,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759024471] [2023-12-02 16:38:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:03,591 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 16:38:03,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:38:03,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:03,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:03,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:38:03,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:04,014 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:38:04,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:38:04,015 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:38:04,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759024471] [2023-12-02 16:38:04,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759024471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:38:04,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:38:04,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:38:04,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460351685] [2023-12-02 16:38:04,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:38:04,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:38:04,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:38:04,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:38:04,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:38:04,019 INFO L87 Difference]: Start difference. First operand 114 states and 170 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:05,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:38:05,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:38:05,236 INFO L93 Difference]: Finished difference Result 247 states and 369 transitions. [2023-12-02 16:38:05,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:38:05,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-02 16:38:05,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:38:05,239 INFO L225 Difference]: With dead ends: 247 [2023-12-02 16:38:05,239 INFO L226 Difference]: Without dead ends: 134 [2023-12-02 16:38:05,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 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 16:38:05,242 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 39 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:38:05,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 475 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 16:38:05,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-12-02 16:38:05,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 116. [2023-12-02 16:38:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 94 states have (on average 1.4042553191489362) internal successors, (132), 94 states have internal predecessors, (132), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:38:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 172 transitions. [2023-12-02 16:38:05,255 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 172 transitions. Word has length 152 [2023-12-02 16:38:05,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:38:05,256 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 172 transitions. [2023-12-02 16:38:05,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:05,257 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 172 transitions. [2023-12-02 16:38:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-02 16:38:05,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:38:05,260 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:05,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:05,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:05,465 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:38:05,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:38:05,465 INFO L85 PathProgramCache]: Analyzing trace with hash -786154934, now seen corresponding path program 1 times [2023-12-02 16:38:05,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:38:05,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550153442] [2023-12-02 16:38:05,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:05,466 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 16:38:05,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:38:05,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:05,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:05,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:38:05,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:38:05,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:38:05,898 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:38:05,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550153442] [2023-12-02 16:38:05,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550153442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:38:05,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:38:05,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:38:05,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465918972] [2023-12-02 16:38:05,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:38:05,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:38:05,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:38:05,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:38:05,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:38:05,901 INFO L87 Difference]: Start difference. First operand 116 states and 172 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:06,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:38:06,017 INFO L93 Difference]: Finished difference Result 246 states and 365 transitions. [2023-12-02 16:38:06,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:38:06,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-02 16:38:06,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:38:06,020 INFO L225 Difference]: With dead ends: 246 [2023-12-02 16:38:06,020 INFO L226 Difference]: Without dead ends: 131 [2023-12-02 16:38:06,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:38:06,022 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 59 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:38:06,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 641 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:38:06,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-02 16:38:06,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 119. [2023-12-02 16:38:06,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:38:06,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2023-12-02 16:38:06,034 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 154 [2023-12-02 16:38:06,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:38:06,035 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2023-12-02 16:38:06,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:06,035 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2023-12-02 16:38:06,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-02 16:38:06,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:38:06,038 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:06,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:06,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:06,240 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:38:06,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:38:06,241 INFO L85 PathProgramCache]: Analyzing trace with hash 219641794, now seen corresponding path program 1 times [2023-12-02 16:38:06,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:38:06,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57368656] [2023-12-02 16:38:06,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:06,242 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 16:38:06,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:38:06,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:06,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:06,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:38:06,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:07,148 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 16:38:08,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:38:09,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:10,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:11,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:12,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:12,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:12,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:13,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:13,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:13,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:13,907 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 15 treesize of output 7 [2023-12-02 16:38:13,962 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:38:13,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:38:14,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:38:14,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57368656] [2023-12-02 16:38:14,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57368656] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:38:14,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1016285714] [2023-12-02 16:38:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:14,321 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:38:14,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:38:14,323 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:38:14,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 16:38:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:16,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 16:38:16,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:16,385 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2023-12-02 16:38:16,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:38:17,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:38:19,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:20,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:20,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:21,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:21,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:22,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:22,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:22,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:23,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:38:23,631 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 15 treesize of output 7 [2023-12-02 16:38:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:38:23,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:38:23,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1016285714] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:38:23,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327008706] [2023-12-02 16:38:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:23,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:38:23,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:38:23,814 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:38:23,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 16:38:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:24,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 16:38:24,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:24,476 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 16:38:26,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2023-12-02 16:38:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:38:26,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:38:26,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327008706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:38:26,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:38:26,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18, 18] total 40 [2023-12-02 16:38:26,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158047812] [2023-12-02 16:38:26,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:38:26,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 16:38:26,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:38:26,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 16:38:26,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1592, Unknown=6, NotChecked=0, Total=1892 [2023-12-02 16:38:26,282 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:29,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:38:33,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:38:33,964 INFO L93 Difference]: Finished difference Result 397 states and 582 transitions. [2023-12-02 16:38:33,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:38:33,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-02 16:38:33,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:38:33,967 INFO L225 Difference]: With dead ends: 397 [2023-12-02 16:38:33,967 INFO L226 Difference]: Without dead ends: 279 [2023-12-02 16:38:33,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 489 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=304, Invalid=1760, Unknown=6, NotChecked=0, Total=2070 [2023-12-02 16:38:33,969 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 214 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:38:33,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 540 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-02 16:38:33,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-12-02 16:38:33,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 198. [2023-12-02 16:38:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 155 states have (on average 1.367741935483871) internal successors, (212), 155 states have internal predecessors, (212), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 16:38:33,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 292 transitions. [2023-12-02 16:38:33,994 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 292 transitions. Word has length 155 [2023-12-02 16:38:33,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:38:33,995 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 292 transitions. [2023-12-02 16:38:33,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:33,995 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 292 transitions. [2023-12-02 16:38:33,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-02 16:38:33,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:38:33,998 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:34,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 16:38:34,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:34,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 16:38:34,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:38:34,599 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:38:34,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:38:34,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1034937346, now seen corresponding path program 1 times [2023-12-02 16:38:34,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:38:34,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629298132] [2023-12-02 16:38:34,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:34,600 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 16:38:34,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:38:34,601 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:34,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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)] Waiting until timeout for monitored process [2023-12-02 16:38:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:34,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:38:34,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:34,962 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:38:34,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:38:34,962 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:38:34,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629298132] [2023-12-02 16:38:34,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629298132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:38:34,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:38:34,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:38:34,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797643373] [2023-12-02 16:38:34,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:38:34,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:38:34,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:38:34,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:38:34,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:38:34,964 INFO L87 Difference]: Start difference. First operand 198 states and 292 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:35,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:38:35,071 INFO L93 Difference]: Finished difference Result 324 states and 477 transitions. [2023-12-02 16:38:35,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:38:35,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-02 16:38:35,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:38:35,074 INFO L225 Difference]: With dead ends: 324 [2023-12-02 16:38:35,074 INFO L226 Difference]: Without dead ends: 206 [2023-12-02 16:38:35,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:38:35,076 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 35 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:38:35,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 625 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:38:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-02 16:38:35,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 201. [2023-12-02 16:38:35,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 158 states have (on average 1.360759493670886) internal successors, (215), 158 states have internal predecessors, (215), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 16:38:35,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 295 transitions. [2023-12-02 16:38:35,093 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 295 transitions. Word has length 156 [2023-12-02 16:38:35,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:38:35,093 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 295 transitions. [2023-12-02 16:38:35,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:35,094 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 295 transitions. [2023-12-02 16:38:35,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-02 16:38:35,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:38:35,096 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:35,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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)] Ended with exit code 0 [2023-12-02 16:38:35,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:35,298 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:38:35,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:38:35,298 INFO L85 PathProgramCache]: Analyzing trace with hash 389377285, now seen corresponding path program 1 times [2023-12-02 16:38:35,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:38:35,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763420474] [2023-12-02 16:38:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:35,299 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 16:38:35,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:38:35,300 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:35,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:35,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:38:35,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:35,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:38:35,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 31 [2023-12-02 16:38:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:38:35,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:38:35,672 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:38:35,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763420474] [2023-12-02 16:38:35,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763420474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:38:35,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:38:35,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:38:35,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125299556] [2023-12-02 16:38:35,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:38:35,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:38:35,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:38:35,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:38:35,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:38:35,674 INFO L87 Difference]: Start difference. First operand 201 states and 295 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:38:35,756 INFO L93 Difference]: Finished difference Result 334 states and 489 transitions. [2023-12-02 16:38:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:38:35,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-02 16:38:35,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:38:35,758 INFO L225 Difference]: With dead ends: 334 [2023-12-02 16:38:35,759 INFO L226 Difference]: Without dead ends: 213 [2023-12-02 16:38:35,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 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 16:38:35,759 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 21 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:38:35,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 316 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:38:35,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-02 16:38:35,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 198. [2023-12-02 16:38:35,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 155 states have internal predecessors, (210), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 16:38:35,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 290 transitions. [2023-12-02 16:38:35,773 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 290 transitions. Word has length 156 [2023-12-02 16:38:35,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:38:35,774 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 290 transitions. [2023-12-02 16:38:35,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:38:35,774 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 290 transitions. [2023-12-02 16:38:35,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-02 16:38:35,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:38:35,776 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:35,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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)] Forceful destruction successful, exit code 0 [2023-12-02 16:38:35,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:35,976 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:38:35,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:38:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1624545052, now seen corresponding path program 1 times [2023-12-02 16:38:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:38:35,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746394006] [2023-12-02 16:38:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:35,977 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 16:38:35,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:38:35,978 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:35,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:38:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:36,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 16:38:36,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:37,067 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 16:38:40,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:38:41,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:38:42,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:38:42,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:38:43,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:38:43,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:38:44,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:38:44,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:38:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-02 16:38:45,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:38:51,513 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_284 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 ((_ zero_extend 24) c_~last_1_var_1_16~0))) (bvugt (bvudiv .cse0 (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_284) c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)) .cse0))) is different from false [2023-12-02 16:38:52,858 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_284 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_283 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 ((_ zero_extend 24) c_~last_1_var_1_16~0))) (bvugt (bvudiv .cse0 (select (select (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_283) c_~var_1_16_Pointer~0.base v_ArrVal_284) c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)) .cse0))) is different from false [2023-12-02 16:38:59,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:38:59,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746394006] [2023-12-02 16:38:59,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746394006] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:38:59,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1739997956] [2023-12-02 16:38:59,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:59,994 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:38:59,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:38:59,995 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:38:59,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 16:39:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:39:01,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:39:01,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:39:02,653 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2023-12-02 16:39:02,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:39:05,192 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 16:39:10,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:39:11,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:39:12,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:39:13,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:39:15,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:39:16,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:39:17,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:39:18,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:39:19,340 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 16 treesize of output 8 [2023-12-02 16:39:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-02 16:39:20,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:39:31,562 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_322 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 ((_ zero_extend 24) c_~last_1_var_1_16~0))) (bvugt (bvudiv .cse0 (select (select (store |c_#memory_int| |c_~#var_1_18~0.base| v_ArrVal_322) c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)) .cse0)))) is different from false [2023-12-02 16:39:31,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1739997956] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:39:31,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680918312] [2023-12-02 16:39:31,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:39:31,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:39:31,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:39:31,934 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:39:31,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 16:39:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:39:32,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 16:39:32,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:39:33,287 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 16:39:43,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-12-02 16:39:49,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-12-02 16:39:54,686 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 19 treesize of output 11 [2023-12-02 16:39:59,022 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:39:59,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:39:59,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680918312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:39:59,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:39:59,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17, 17] total 40 [2023-12-02 16:39:59,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744959569] [2023-12-02 16:39:59,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:39:59,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 16:39:59,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:39:59,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 16:39:59,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1908, Unknown=3, NotChecked=276, Total=2450 [2023-12-02 16:39:59,025 INFO L87 Difference]: Start difference. First operand 198 states and 290 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:40:14,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:40:34,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:40:37,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:40:40,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:40:42,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:40:50,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:40:51,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:40:51,621 INFO L93 Difference]: Finished difference Result 463 states and 668 transitions. [2023-12-02 16:40:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 16:40:51,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-02 16:40:51,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:40:51,624 INFO L225 Difference]: With dead ends: 463 [2023-12-02 16:40:51,624 INFO L226 Difference]: Without dead ends: 345 [2023-12-02 16:40:51,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 72.9s TimeCoverageRelationStatistics Valid=296, Invalid=2263, Unknown=3, NotChecked=300, Total=2862 [2023-12-02 16:40:51,626 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 294 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:40:51,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 625 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 602 Invalid, 3 Unknown, 0 Unchecked, 33.5s Time] [2023-12-02 16:40:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-12-02 16:40:51,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 213. [2023-12-02 16:40:51,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 170 states have (on average 1.3823529411764706) internal successors, (235), 170 states have internal predecessors, (235), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 16:40:51,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 315 transitions. [2023-12-02 16:40:51,643 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 315 transitions. Word has length 157 [2023-12-02 16:40:51,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:40:51,643 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 315 transitions. [2023-12-02 16:40:51,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:40:51,644 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 315 transitions. [2023-12-02 16:40:51,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-02 16:40:51,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:40:51,645 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:40:51,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-02 16:40:51,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-02 16:40:52,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:40:52,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:40:52,246 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:40:52,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:40:52,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1366379614, now seen corresponding path program 1 times [2023-12-02 16:40:52,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:40:52,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133197189] [2023-12-02 16:40:52,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:40:52,247 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 16:40:52,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:40:52,247 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:40:52,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:40:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:40:53,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 16:40:53,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:40:53,928 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 16:40:56,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:40:58,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:40:58,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:40:59,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:00,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:00,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:01,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:01,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:02,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-02 16:41:03,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:41:34,105 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:41:34,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133197189] [2023-12-02 16:41:34,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133197189] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:41:34,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1471506285] [2023-12-02 16:41:34,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:41:34,105 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:41:34,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:41:34,106 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:41:34,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 16:41:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:41:35,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:41:35,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:41:37,600 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2023-12-02 16:41:37,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:41:40,541 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 16:41:47,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:49,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:50,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:52,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:53,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:54,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:55,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:56,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:41:58,061 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 16 treesize of output 8 [2023-12-02 16:41:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-02 16:41:59,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:42:04,416 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_429 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 ((_ zero_extend 24) c_~last_1_var_1_16~0))) (bvugt (bvudiv .cse0 (select (select (store |c_#memory_int| |c_~#var_1_18~0.base| v_ArrVal_429) c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)) .cse0)))) is different from false [2023-12-02 16:42:04,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1471506285] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:42:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100932640] [2023-12-02 16:42:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:42:04,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:42:04,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:42:04,686 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:42:04,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 16:42:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:42:05,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 16:42:05,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:42:14,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2023-12-02 16:42:22,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:42:24,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:42:27,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:42:29,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:42:31,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 98 [2023-12-02 16:42:33,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 119 [2023-12-02 16:42:35,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:42:35,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 305 treesize of output 147 [2023-12-02 16:42:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 583 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2023-12-02 16:42:39,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:42:44,419 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_467 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_467))) (fp.eq (let ((.cse0 (let ((.cse1 (select .cse2 c_~var_1_1_Pointer~0.base))) (concat (select .cse1 (bvadd (_ bv4 32) c_~var_1_1_Pointer~0.offset)) (select .cse1 c_~var_1_1_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (let ((.cse3 (let ((.cse4 (select .cse2 c_~var_1_9_Pointer~0.base))) (concat (select .cse4 (bvadd (_ bv4 32) c_~var_1_9_Pointer~0.offset)) (select .cse4 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3)))))) is different from false [2023-12-02 16:42:44,496 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_467 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_84| (_ BitVec 64))) (let ((.cse6 (bvadd (_ bv4 32) c_~var_1_9_Pointer~0.offset))) (or (let ((.cse2 (bvadd (_ bv4 32) ~var_1_1_Pointer~0.offset))) (let ((.cse3 (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base (store (store (select |c_#memory_int| c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_84|)) .cse2 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_84|))) c_~var_1_16_Pointer~0.base v_ArrVal_467))) (fp.eq (let ((.cse0 (let ((.cse1 (select .cse3 c_~var_1_1_Pointer~0.base))) (concat (select .cse1 .cse2) (select .cse1 ~var_1_1_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (let ((.cse4 (let ((.cse5 (select .cse3 c_~var_1_9_Pointer~0.base))) (concat (select .cse5 .cse6) (select .cse5 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4)))))) (not (= (let ((.cse7 (let ((.cse8 (select |c_#memory_int| c_~var_1_9_Pointer~0.base))) (concat (select .cse8 .cse6) (select .cse8 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse7) ((_ extract 62 52) .cse7) ((_ extract 51 0) .cse7))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_84|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_84|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_84|))))))) is different from false [2023-12-02 16:42:44,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100932640] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:42:44,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:42:44,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2023-12-02 16:42:44,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204934575] [2023-12-02 16:42:44,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:42:44,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-02 16:42:44,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:42:44,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-02 16:42:44,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=3221, Unknown=29, NotChecked=354, Total=3906 [2023-12-02 16:42:44,668 INFO L87 Difference]: Start difference. First operand 213 states and 315 transitions. Second operand has 50 states, 48 states have (on average 4.666666666666667) internal successors, (224), 45 states have internal predecessors, (224), 26 states have call successors, (60), 26 states have call predecessors, (60), 27 states have return successors, (60), 26 states have call predecessors, (60), 26 states have call successors, (60) [2023-12-02 16:43:13,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:43:14,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:43:18,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:43:21,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:43:30,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:43:37,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:43:43,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:43:45,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:43:47,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:43:53,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:43:56,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:44:15,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:44:20,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:44:42,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:44:45,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:44:45,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:44:45,958 INFO L93 Difference]: Finished difference Result 887 states and 1250 transitions. [2023-12-02 16:44:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-02 16:44:45,967 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 4.666666666666667) internal successors, (224), 45 states have internal predecessors, (224), 26 states have call successors, (60), 26 states have call predecessors, (60), 27 states have return successors, (60), 26 states have call predecessors, (60), 26 states have call successors, (60) Word has length 157 [2023-12-02 16:44:45,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:44:45,970 INFO L225 Difference]: With dead ends: 887 [2023-12-02 16:44:45,970 INFO L226 Difference]: Without dead ends: 755 [2023-12-02 16:44:45,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3432 ImplicationChecksByTransitivity, 139.2s TimeCoverageRelationStatistics Valid=1940, Invalid=11849, Unknown=29, NotChecked=702, Total=14520 [2023-12-02 16:44:45,976 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 2634 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 5336 mSolverCounterSat, 612 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2644 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 5951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 5336 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.8s IncrementalHoareTripleChecker+Time [2023-12-02 16:44:45,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2644 Valid, 2920 Invalid, 5951 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [612 Valid, 5336 Invalid, 3 Unknown, 0 Unchecked, 60.8s Time] [2023-12-02 16:44:45,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-12-02 16:44:46,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 275. [2023-12-02 16:44:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 209 states have (on average 1.3397129186602872) internal successors, (280), 209 states have internal predecessors, (280), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:44:46,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 400 transitions. [2023-12-02 16:44:46,016 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 400 transitions. Word has length 157 [2023-12-02 16:44:46,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:44:46,017 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 400 transitions. [2023-12-02 16:44:46,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 4.666666666666667) internal successors, (224), 45 states have internal predecessors, (224), 26 states have call successors, (60), 26 states have call predecessors, (60), 27 states have return successors, (60), 26 states have call predecessors, (60), 26 states have call successors, (60) [2023-12-02 16:44:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 400 transitions. [2023-12-02 16:44:46,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-02 16:44:46,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:44:46,019 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:44:46,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:44:46,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 16:44:46,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 16:44:46,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:44:46,625 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:44:46,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:44:46,625 INFO L85 PathProgramCache]: Analyzing trace with hash 841373978, now seen corresponding path program 1 times [2023-12-02 16:44:46,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:44:46,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969914999] [2023-12-02 16:44:46,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:44:46,627 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 16:44:46,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:44:46,627 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:44:46,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:44:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:44:47,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:44:47,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:44:47,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:48,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:49,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:50,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:51,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:51,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:52,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:52,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:52,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:53,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:53,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:54,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:44:54,086 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 16:44:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 16:44:54,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:44:54,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:44:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969914999] [2023-12-02 16:44:54,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969914999] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:44:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2086567559] [2023-12-02 16:44:54,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:44:54,417 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:44:54,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:44:54,418 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:44:54,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 16:44:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:44:56,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 16:44:56,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:44:56,449 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2023-12-02 16:44:56,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:44:57,665 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 16:44:59,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:00,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:01,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:01,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:02,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:03,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:03,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:04,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:04,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:04,878 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 15 treesize of output 7 [2023-12-02 16:45:05,010 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:45:05,010 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:45:05,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2086567559] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:45:05,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460431241] [2023-12-02 16:45:05,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:45:05,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:45:05,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:45:05,543 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:45:05,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 16:45:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:45:05,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 16:45:05,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:45:06,167 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 16:45:09,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2023-12-02 16:45:09,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2023-12-02 16:45:09,428 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 21 treesize of output 13 [2023-12-02 16:45:09,585 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:45:09,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:45:09,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460431241] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:45:09,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:45:09,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15, 18] total 39 [2023-12-02 16:45:09,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659950781] [2023-12-02 16:45:09,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:45:09,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 16:45:09,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:45:09,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 16:45:09,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1695, Unknown=20, NotChecked=0, Total=1980 [2023-12-02 16:45:09,589 INFO L87 Difference]: Start difference. First operand 275 states and 400 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:45:12,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:45:15,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:45:16,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:45:20,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:45:21,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:45:22,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:45:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:45:24,477 INFO L93 Difference]: Finished difference Result 554 states and 802 transitions. [2023-12-02 16:45:24,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:45:24,478 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-02 16:45:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:45:24,481 INFO L225 Difference]: With dead ends: 554 [2023-12-02 16:45:24,481 INFO L226 Difference]: Without dead ends: 392 [2023-12-02 16:45:24,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 486 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=281, Invalid=1955, Unknown=20, NotChecked=0, Total=2256 [2023-12-02 16:45:24,484 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 262 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:45:24,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 539 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 14.4s Time] [2023-12-02 16:45:24,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-12-02 16:45:24,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 275. [2023-12-02 16:45:24,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 209 states have (on average 1.3397129186602872) internal successors, (280), 209 states have internal predecessors, (280), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:45:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 400 transitions. [2023-12-02 16:45:24,524 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 400 transitions. Word has length 157 [2023-12-02 16:45:24,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:45:24,525 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 400 transitions. [2023-12-02 16:45:24,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:45:24,525 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 400 transitions. [2023-12-02 16:45:24,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-02 16:45:24,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:45:24,526 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:24,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:45:24,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-12-02 16:45:24,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 16:45:25,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:45:25,127 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:45:25,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:45:25,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1608472765, now seen corresponding path program 1 times [2023-12-02 16:45:25,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:45:25,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620773881] [2023-12-02 16:45:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:45:25,129 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 16:45:25,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:45:25,129 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:45:25,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:45:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:45:25,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:45:25,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:45:25,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:45:25,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 31 [2023-12-02 16:45:25,563 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:45:25,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:45:25,563 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:45:25,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620773881] [2023-12-02 16:45:25,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620773881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:45:25,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:45:25,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:45:25,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223120953] [2023-12-02 16:45:25,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:45:25,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:45:25,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:45:25,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:45:25,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:45:25,565 INFO L87 Difference]: Start difference. First operand 275 states and 400 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:45:25,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:45:25,676 INFO L93 Difference]: Finished difference Result 435 states and 636 transitions. [2023-12-02 16:45:25,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:45:25,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-02 16:45:25,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:45:25,680 INFO L225 Difference]: With dead ends: 435 [2023-12-02 16:45:25,680 INFO L226 Difference]: Without dead ends: 273 [2023-12-02 16:45:25,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 16:45:25,681 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:45:25,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 308 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:45:25,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-12-02 16:45:25,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2023-12-02 16:45:25,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 207 states have (on average 1.3236714975845412) internal successors, (274), 207 states have internal predecessors, (274), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:45:25,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 394 transitions. [2023-12-02 16:45:25,731 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 394 transitions. Word has length 157 [2023-12-02 16:45:25,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:45:25,732 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 394 transitions. [2023-12-02 16:45:25,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:45:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 394 transitions. [2023-12-02 16:45:25,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-02 16:45:25,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:45:25,733 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:25,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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)] Forceful destruction successful, exit code 0 [2023-12-02 16:45:25,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:45:25,934 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:45:25,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:45:25,934 INFO L85 PathProgramCache]: Analyzing trace with hash -115175016, now seen corresponding path program 1 times [2023-12-02 16:45:25,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:45:25,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520466883] [2023-12-02 16:45:25,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:45:25,935 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 16:45:25,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:45:25,936 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:45:25,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:45:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:45:26,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:45:26,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:45:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-12-02 16:45:26,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:45:26,329 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:45:26,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520466883] [2023-12-02 16:45:26,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520466883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:45:26,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:45:26,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:45:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085784589] [2023-12-02 16:45:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:45:26,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:45:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:45:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:45:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:45:26,331 INFO L87 Difference]: Start difference. First operand 273 states and 394 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:45:26,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:45:26,463 INFO L93 Difference]: Finished difference Result 478 states and 692 transitions. [2023-12-02 16:45:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:45:26,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2023-12-02 16:45:26,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:45:26,465 INFO L225 Difference]: With dead ends: 478 [2023-12-02 16:45:26,465 INFO L226 Difference]: Without dead ends: 281 [2023-12-02 16:45:26,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 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 16:45:26,466 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 7 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:45:26,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 465 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:45:26,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-02 16:45:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 273. [2023-12-02 16:45:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 207 states have (on average 1.3140096618357489) internal successors, (272), 207 states have internal predecessors, (272), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:45:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 392 transitions. [2023-12-02 16:45:26,516 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 392 transitions. Word has length 157 [2023-12-02 16:45:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:45:26,517 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 392 transitions. [2023-12-02 16:45:26,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:45:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 392 transitions. [2023-12-02 16:45:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-02 16:45:26,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:45:26,519 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:26,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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)] Ended with exit code 0 [2023-12-02 16:45:26,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:45:26,719 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:45:26,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:45:26,720 INFO L85 PathProgramCache]: Analyzing trace with hash -817878248, now seen corresponding path program 1 times [2023-12-02 16:45:26,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:45:26,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447137567] [2023-12-02 16:45:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:45:26,720 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 16:45:26,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:45:26,721 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:45:26,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:45:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:45:27,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 16:45:27,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:45:28,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:29,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:30,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:31,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:31,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:32,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:32,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:32,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:33,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:33,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:45:33,487 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 15 treesize of output 7 [2023-12-02 16:45:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:45:33,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:45:33,957 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:45:33,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447137567] [2023-12-02 16:45:33,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447137567] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:45:33,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [580780125] [2023-12-02 16:45:33,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:45:33,957 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:45:33,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:45:33,958 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:45:33,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 16:45:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:45:35,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 16:45:35,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:45:36,483 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 16:45:37,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:38,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:39,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:39,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:40,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:40,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:41,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:41,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:42,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:45:42,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:45:42,957 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 16 treesize of output 8 [2023-12-02 16:45:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 16:45:43,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:45:43,463 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_698 (Array (_ BitVec 32) (_ BitVec 32)))) (bvult (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_698) c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) ((_ zero_extend 24) c_~last_1_var_1_16~0))) is different from false [2023-12-02 16:45:44,049 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_698 (Array (_ BitVec 32) (_ BitVec 32))) (~last_1_var_1_16~0 (_ BitVec 8))) (let ((.cse0 ((_ zero_extend 24) ~last_1_var_1_16~0))) (or (not (bvult (select (select |c_#memory_int| c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) .cse0)) (bvult (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_698) c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) .cse0)))) is different from false [2023-12-02 16:45:44,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [580780125] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:45:44,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478071176] [2023-12-02 16:45:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:45:44,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:45:44,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:45:44,066 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:45:44,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-02 16:45:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:45:45,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 16:45:45,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:45:45,364 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 16:45:47,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:45:47,933 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 16 treesize of output 8 [2023-12-02 16:45:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:45:48,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:45:48,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478071176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:45:48,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:45:48,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18, 18] total 43 [2023-12-02 16:45:48,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791712949] [2023-12-02 16:45:48,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:45:48,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:45:48,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:45:48,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:45:48,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=2295, Unknown=7, NotChecked=198, Total=2756 [2023-12-02 16:45:48,216 INFO L87 Difference]: Start difference. First operand 273 states and 392 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:45:52,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:45:54,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:45:56,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:46:03,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:46:07,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:46:08,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:46:08,153 INFO L93 Difference]: Finished difference Result 590 states and 844 transitions. [2023-12-02 16:46:08,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 16:46:08,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2023-12-02 16:46:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:46:08,156 INFO L225 Difference]: With dead ends: 590 [2023-12-02 16:46:08,156 INFO L226 Difference]: Without dead ends: 430 [2023-12-02 16:46:08,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 996 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=291, Invalid=2680, Unknown=7, NotChecked=214, Total=3192 [2023-12-02 16:46:08,158 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 221 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:46:08,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 864 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 804 Invalid, 3 Unknown, 0 Unchecked, 19.5s Time] [2023-12-02 16:46:08,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-12-02 16:46:08,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 290. [2023-12-02 16:46:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 224 states have (on average 1.3392857142857142) internal successors, (300), 224 states have internal predecessors, (300), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:46:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 420 transitions. [2023-12-02 16:46:08,191 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 420 transitions. Word has length 158 [2023-12-02 16:46:08,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:46:08,192 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 420 transitions. [2023-12-02 16:46:08,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:46:08,192 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 420 transitions. [2023-12-02 16:46:08,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-02 16:46:08,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:46:08,194 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:46:08,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-12-02 16:46:08,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-12-02 16:46:08,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:46:08,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:46:08,797 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:46:08,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:46:08,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1076043686, now seen corresponding path program 1 times [2023-12-02 16:46:08,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:46:08,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16189992] [2023-12-02 16:46:08,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:46:08,798 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 16:46:08,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:46:08,799 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:46:08,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 (25)] Waiting until timeout for monitored process [2023-12-02 16:46:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:46:09,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 16:46:09,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:46:10,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:46:11,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:13,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:13,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:14,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:14,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:14,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:15,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:15,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:15,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:16,028 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 15 treesize of output 7 [2023-12-02 16:46:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:46:16,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:46:16,494 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:46:16,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16189992] [2023-12-02 16:46:16,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16189992] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:46:16,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [26760676] [2023-12-02 16:46:16,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:46:16,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:46:16,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:46:16,495 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:46:16,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 16:46:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:46:17,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 16:46:17,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:46:19,090 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 16:46:20,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:21,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:22,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:23,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:23,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:23,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:24,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:24,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:25,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:46:25,477 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 15 treesize of output 7 [2023-12-02 16:46:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:46:25,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:46:25,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [26760676] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:46:25,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885787977] [2023-12-02 16:46:25,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:46:25,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:46:25,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:46:25,527 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:46:25,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-02 16:46:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:46:26,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 16:46:26,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:46:26,493 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 16:46:31,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2023-12-02 16:46:33,621 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 20 treesize of output 12 [2023-12-02 16:46:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:46:35,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:46:35,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885787977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:46:35,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:46:35,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18, 18] total 39 [2023-12-02 16:46:35,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406670232] [2023-12-02 16:46:35,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:46:35,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 16:46:35,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:46:35,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 16:46:35,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=1531, Unknown=0, NotChecked=0, Total=1806 [2023-12-02 16:46:35,431 INFO L87 Difference]: Start difference. First operand 290 states and 420 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:47:06,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:09,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:13,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:15,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:18,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:22,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:25,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:34,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:40,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:45,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:49,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:51,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:47:51,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:47:51,365 INFO L93 Difference]: Finished difference Result 593 states and 847 transitions. [2023-12-02 16:47:51,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 16:47:51,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2023-12-02 16:47:51,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:47:51,368 INFO L225 Difference]: With dead ends: 593 [2023-12-02 16:47:51,368 INFO L226 Difference]: Without dead ends: 433 [2023-12-02 16:47:51,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=298, Invalid=1864, Unknown=0, NotChecked=0, Total=2162 [2023-12-02 16:47:51,370 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 167 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:47:51,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 768 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 733 Invalid, 5 Unknown, 0 Unchecked, 71.9s Time] [2023-12-02 16:47:51,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-12-02 16:47:51,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 290. [2023-12-02 16:47:51,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 224 states have (on average 1.3348214285714286) internal successors, (299), 224 states have internal predecessors, (299), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:47:51,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 419 transitions. [2023-12-02 16:47:51,425 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 419 transitions. Word has length 158 [2023-12-02 16:47:51,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:47:51,425 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 419 transitions. [2023-12-02 16:47:51,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:47:51,426 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 419 transitions. [2023-12-02 16:47:51,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-02 16:47:51,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:47:51,427 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:47:51,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-12-02 16:47:51,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 (25)] Ended with exit code 0 [2023-12-02 16:47:51,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 16:47:52,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:47:52,028 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:47:52,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:47:52,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1334707084, now seen corresponding path program 1 times [2023-12-02 16:47:52,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:47:52,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759523591] [2023-12-02 16:47:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:47:52,029 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 16:47:52,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:47:52,030 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:47:52,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 (28)] Waiting until timeout for monitored process [2023-12-02 16:47:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:47:52,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:47:52,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:47:52,741 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 16:47:53,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:47:54,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:47:56,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:47:56,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:47:57,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:47:57,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:47:58,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:47:58,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:47:59,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:47:59,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:47:59,757 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 15 treesize of output 7 [2023-12-02 16:47:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:47:59,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:48:00,203 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:48:00,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759523591] [2023-12-02 16:48:00,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759523591] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:48:00,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1582298080] [2023-12-02 16:48:00,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:48:00,204 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:48:00,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:48:00,205 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:48:00,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 16:48:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:48:01,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 16:48:02,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:48:02,356 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2023-12-02 16:48:02,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-12-02 16:48:03,696 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 16:48:05,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:06,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:07,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:07,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:08,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:09,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:09,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:10,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:10,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:10,833 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 15 treesize of output 7 [2023-12-02 16:48:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:48:10,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:48:11,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1582298080] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:48:11,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162699980] [2023-12-02 16:48:11,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:48:11,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:48:11,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:48:11,034 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:48:11,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-02 16:48:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:48:11,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 16:48:11,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:48:14,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:48:15,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2023-12-02 16:48:16,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 39 [2023-12-02 16:48:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 69 proven. 130 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-02 16:48:16,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:48:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:48:17,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162699980] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:48:17,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:48:17,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18, 18, 14] total 51 [2023-12-02 16:48:17,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038852629] [2023-12-02 16:48:17,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:48:17,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:48:17,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:48:17,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:48:17,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=2533, Unknown=6, NotChecked=0, Total=2862 [2023-12-02 16:48:17,030 INFO L87 Difference]: Start difference. First operand 290 states and 419 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:48:19,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:48:22,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:48:24,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:48:25,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:48:25,426 INFO L93 Difference]: Finished difference Result 334 states and 475 transitions. [2023-12-02 16:48:25,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:48:25,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2023-12-02 16:48:25,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:48:25,437 INFO L225 Difference]: With dead ends: 334 [2023-12-02 16:48:25,437 INFO L226 Difference]: Without dead ends: 332 [2023-12-02 16:48:25,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 651 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1364 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=337, Invalid=2849, Unknown=6, NotChecked=0, Total=3192 [2023-12-02 16:48:25,440 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 48 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:48:25,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 621 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2023-12-02 16:48:25,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-02 16:48:25,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 323. [2023-12-02 16:48:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 257 states have (on average 1.3346303501945525) internal successors, (343), 257 states have internal predecessors, (343), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:48:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 463 transitions. [2023-12-02 16:48:25,494 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 463 transitions. Word has length 158 [2023-12-02 16:48:25,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:48:25,494 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 463 transitions. [2023-12-02 16:48:25,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:48:25,495 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 463 transitions. [2023-12-02 16:48:25,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 16:48:25,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:48:25,496 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:48:25,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 (28)] Ended with exit code 0 [2023-12-02 16:48:25,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 16:48:25,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-12-02 16:48:26,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:48:26,098 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:48:26,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:48:26,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1627151925, now seen corresponding path program 1 times [2023-12-02 16:48:26,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:48:26,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837214553] [2023-12-02 16:48:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:48:26,099 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 16:48:26,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:48:26,100 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:48:26,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 (31)] Waiting until timeout for monitored process [2023-12-02 16:48:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:48:26,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 16:48:26,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:48:28,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:29,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:30,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:31,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:32,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:32,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:33,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:33,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:34,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:34,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:34,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:35,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:48:35,124 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 15 treesize of output 7 [2023-12-02 16:48:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:48:35,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:48:35,656 WARN L854 $PredicateComparison]: unable to prove that (forall ((~last_1_var_1_16~0 (_ BitVec 8)) (v_ArrVal_959 (Array (_ BitVec 32) (_ BitVec 32)))) (not (bvult (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_959) c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) ((_ zero_extend 24) ~last_1_var_1_16~0)))) is different from false [2023-12-02 16:48:35,924 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:48:35,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837214553] [2023-12-02 16:48:35,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837214553] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:48:35,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1160774584] [2023-12-02 16:48:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:48:35,925 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:48:35,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:48:35,926 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:48:35,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 16:48:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:48:37,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 16:48:37,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:48:38,585 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 16:48:39,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:41,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:41,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:42,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:42,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:43,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:43,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:44,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:44,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:45,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-02 16:48:45,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-02 16:48:45,761 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 16:48:46,060 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 16:48:46,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:48:47,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1160774584] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:48:47,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467250932] [2023-12-02 16:48:47,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:48:47,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:48:47,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:48:47,111 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:48:47,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-12-02 16:48:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:48:47,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 16:48:47,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:48:47,815 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 16:48:50,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-02 16:48:50,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-02 16:48:50,996 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 16:48:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:48:51,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:48:51,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467250932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:48:51,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:48:51,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20, 18] total 45 [2023-12-02 16:48:51,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924956106] [2023-12-02 16:48:51,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:48:51,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:48:51,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:48:51,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:48:51,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=2588, Unknown=14, NotChecked=106, Total=3080 [2023-12-02 16:48:51,281 INFO L87 Difference]: Start difference. First operand 323 states and 463 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:48:55,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:48:57,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:49:02,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:49:04,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:49:06,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:49:10,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:49:11,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:49:11,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:49:11,918 INFO L93 Difference]: Finished difference Result 722 states and 1023 transitions. [2023-12-02 16:49:11,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 16:49:11,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-02 16:49:11,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:49:11,921 INFO L225 Difference]: With dead ends: 722 [2023-12-02 16:49:11,921 INFO L226 Difference]: Without dead ends: 531 [2023-12-02 16:49:11,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1133 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=432, Invalid=3098, Unknown=14, NotChecked=116, Total=3660 [2023-12-02 16:49:11,923 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 238 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:49:11,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 820 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 788 Invalid, 2 Unknown, 0 Unchecked, 20.0s Time] [2023-12-02 16:49:11,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-02 16:49:11,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 349. [2023-12-02 16:49:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 283 states have (on average 1.353356890459364) internal successors, (383), 283 states have internal predecessors, (383), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:49:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 503 transitions. [2023-12-02 16:49:11,967 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 503 transitions. Word has length 159 [2023-12-02 16:49:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:49:11,968 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 503 transitions. [2023-12-02 16:49:11,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:49:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 503 transitions. [2023-12-02 16:49:11,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 16:49:11,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:49:11,969 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:49:11,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 (31)] Ended with exit code 0 [2023-12-02 16:49:12,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-12-02 16:49:12,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 16:49:12,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:49:12,570 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:49:12,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:49:12,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1656698121, now seen corresponding path program 1 times [2023-12-02 16:49:12,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:49:12,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117671794] [2023-12-02 16:49:12,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:49:12,571 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 16:49:12,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:49:12,572 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:49:12,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 (34)] Waiting until timeout for monitored process [2023-12-02 16:49:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:49:13,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 16:49:13,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:49:15,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:49:16,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:49:19,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:20,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:20,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:21,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:22,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:23,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:23,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:24,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:28,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:28,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:49:28,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-12-02 16:49:29,323 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 717 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:49:29,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:49:32,312 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1070 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_1070))) (bvult (select (select .cse0 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) (bvudiv ((_ zero_extend 24) c_~last_1_var_1_16~0) (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)))))) is different from false [2023-12-02 16:49:32,666 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1069 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1070 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1069) c_~var_1_16_Pointer~0.base v_ArrVal_1070))) (bvult (select (select .cse0 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) (bvudiv ((_ zero_extend 24) c_~last_1_var_1_16~0) (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)))))) is different from false [2023-12-02 16:49:51,037 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:49:51,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117671794] [2023-12-02 16:49:51,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117671794] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:49:51,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [743206034] [2023-12-02 16:49:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:49:51,037 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:49:51,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:49:51,038 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:49:51,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 16:49:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:49:53,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 16:49:53,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:49:55,155 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 16:49:58,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 16:50:01,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:03,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:04,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:04,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:05,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:06,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:07,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:08,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:09,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:10,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 16:50:11,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-12-02 16:50:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 717 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:50:11,606 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:50:16,993 WARN L854 $PredicateComparison]: unable to prove that (forall ((~last_1_var_1_16~0 (_ BitVec 8)) (v_ArrVal_1110 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_1110))) (bvult (select (select .cse0 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) (bvudiv ((_ zero_extend 24) ~last_1_var_1_16~0) (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)))))) is different from false [2023-12-02 16:50:17,388 WARN L854 $PredicateComparison]: unable to prove that (forall ((~last_1_var_1_16~0 (_ BitVec 8)) (v_ArrVal_1110 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1109 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1109) c_~var_1_16_Pointer~0.base v_ArrVal_1110))) (bvult (select (select .cse0 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) (bvudiv ((_ zero_extend 24) ~last_1_var_1_16~0) (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)))))) is different from false [2023-12-02 16:50:17,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [743206034] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:50:17,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523139819] [2023-12-02 16:50:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:50:17,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:50:17,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:50:17,663 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:50:17,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-12-02 16:50:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:50:18,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 16:50:18,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:50:18,668 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 16:50:24,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2023-12-02 16:50:27,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2023-12-02 16:50:30,539 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 20 treesize of output 12 [2023-12-02 16:50:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:50:33,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:50:33,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523139819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:50:33,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:50:33,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [25, 24] total 54 [2023-12-02 16:50:33,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765578735] [2023-12-02 16:50:33,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:50:33,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 16:50:33,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:50:33,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 16:50:33,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=455, Invalid=3316, Unknown=27, NotChecked=492, Total=4290 [2023-12-02 16:50:33,188 INFO L87 Difference]: Start difference. First operand 349 states and 503 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:51:16,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:51:17,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:51:27,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:51:28,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:51:31,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:51:38,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:51:47,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:51:56,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:51:59,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:52:07,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:52:09,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:52:09,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:52:09,850 INFO L93 Difference]: Finished difference Result 710 states and 1006 transitions. [2023-12-02 16:52:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 16:52:09,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-02 16:52:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:52:09,853 INFO L225 Difference]: With dead ends: 710 [2023-12-02 16:52:09,853 INFO L226 Difference]: Without dead ends: 519 [2023-12-02 16:52:09,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 462 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1830 ImplicationChecksByTransitivity, 52.9s TimeCoverageRelationStatistics Valid=481, Invalid=3798, Unknown=27, NotChecked=524, Total=4830 [2023-12-02 16:52:09,856 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 203 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:52:09,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 768 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 849 Invalid, 2 Unknown, 0 Unchecked, 90.9s Time] [2023-12-02 16:52:09,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-12-02 16:52:09,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 373. [2023-12-02 16:52:09,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 307 states have (on average 1.3583061889250814) internal successors, (417), 307 states have internal predecessors, (417), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:52:09,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 537 transitions. [2023-12-02 16:52:09,890 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 537 transitions. Word has length 159 [2023-12-02 16:52:09,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:52:09,890 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 537 transitions. [2023-12-02 16:52:09,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:52:09,890 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 537 transitions. [2023-12-02 16:52:09,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 16:52:09,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:52:09,891 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:52:09,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 (34)] Ended with exit code 0 [2023-12-02 16:52:10,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 16:52:10,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-12-02 16:52:10,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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=3,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:52:10,492 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:52:10,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:52:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash -2095306830, now seen corresponding path program 1 times [2023-12-02 16:52:10,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:52:10,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822111308] [2023-12-02 16:52:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:52:10,493 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 16:52:10,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:52:10,494 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 16:52:10,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/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 (37)] Waiting until timeout for monitored process [2023-12-02 16:52:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:52:11,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 16:52:11,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:52:11,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:12,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:13,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:15,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:15,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:16,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:16,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:17,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:17,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:18,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:18,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:19,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:19,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:19,214 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 16:52:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 16:52:19,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:52:19,557 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1183 (Array (_ BitVec 32) (_ BitVec 32)))) (= ((_ extract 7 0) ((_ sign_extend 24) (_ bv0 8))) ((_ extract 7 0) (select (select (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1182) c_~var_1_16_Pointer~0.base v_ArrVal_1183) c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset)))) is different from false [2023-12-02 16:52:19,586 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:52:19,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822111308] [2023-12-02 16:52:19,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822111308] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:52:19,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [242974207] [2023-12-02 16:52:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:52:19,587 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:52:19,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:52:19,588 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:52:19,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 16:52:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:52:21,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 16:52:21,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:52:21,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:23,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:24,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:25,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:26,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:27,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:27,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:28,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:28,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:29,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:29,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:30,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:30,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 16:52:30,575 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 16:52:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 16:52:30,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:52:31,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [242974207] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:52:31,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495871304] [2023-12-02 16:52:31,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:52:31,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:52:31,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:52:31,025 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:52:31,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20c3fedf-1469-420f-a555-a3a4d28ece9e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-12-02 16:52:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:52:31,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-02 16:52:31,857 INFO L285 TraceCheckSpWp]: Computing forward predicates...