./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E --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 f0a95c837253461e666811310d33281cfc4592599bb0e38960c7585c8a470237 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:45:57,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:45:57,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:45:57,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:45:57,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:45:57,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:45:57,539 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:45:57,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:45:57,540 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:45:57,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:45:57,540 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:45:57,540 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:45:57,540 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:45:57,541 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:45:57,541 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:45:57,541 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:45:57,542 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:45:57,542 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:45:57,542 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:45:57,542 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:45:57,543 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:45:57,543 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:45:57,543 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:45:57,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:45:57,543 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:45:57,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:45:57,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:45:57,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:45:57,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:45:57,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:45:57,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:45:57,545 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:45:57,545 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:45:57,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:45:57,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:45:57,545 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:45:57,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:45:57,545 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E 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 -> f0a95c837253461e666811310d33281cfc4592599bb0e38960c7585c8a470237 [2024-11-13 23:45:57,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:45:57,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:45:57,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:45:57,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:45:57,886 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:45:57,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i Unable to find full path for "g++" [2024-11-13 23:45:59,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:46:00,029 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:46:00,031 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i [2024-11-13 23:46:00,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/data/fe7802c03/d07d3a1464cd4b888d7c35f6ad719fb9/FLAG02daff0ff [2024-11-13 23:46:00,051 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/data/fe7802c03/d07d3a1464cd4b888d7c35f6ad719fb9 [2024-11-13 23:46:00,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:46:00,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:46:00,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:46:00,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:46:00,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:46:00,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c234fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00, skipping insertion in model container [2024-11-13 23:46:00,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,086 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:46:00,255 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i[916,929] [2024-11-13 23:46:00,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:46:00,365 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:46:00,380 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i[916,929] [2024-11-13 23:46:00,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:46:00,451 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:46:00,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00 WrapperNode [2024-11-13 23:46:00,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:46:00,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:46:00,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:46:00,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:46:00,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,472 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,533 INFO L138 Inliner]: procedures = 29, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 429 [2024-11-13 23:46:00,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:46:00,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:46:00,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:46:00,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:46:00,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:46:00,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:46:00,602 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:46:00,602 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:46:00,603 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (1/1) ... [2024-11-13 23:46:00,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:46:00,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:00,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:46:00,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:46:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:46:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-13 23:46:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:46:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-13 23:46:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:46:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-13 23:46:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:46:00,674 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:46:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:46:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:46:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:46:00,835 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:46:00,837 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:46:01,434 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-13 23:46:01,434 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:46:02,014 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:46:02,015 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:46:02,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:46:02 BoogieIcfgContainer [2024-11-13 23:46:02,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:46:02,019 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:46:02,020 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:46:02,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:46:02,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:46:00" (1/3) ... [2024-11-13 23:46:02,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bedc90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:46:02, skipping insertion in model container [2024-11-13 23:46:02,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:00" (2/3) ... [2024-11-13 23:46:02,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bedc90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:46:02, skipping insertion in model container [2024-11-13 23:46:02,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:46:02" (3/3) ... [2024-11-13 23:46:02,032 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-84.i [2024-11-13 23:46:02,050 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:46:02,052 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-84.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:46:02,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:46:02,140 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@21c20f71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:46:02,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:46:02,144 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) [2024-11-13 23:46:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 23:46:02,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:02,157 INFO L215 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] [2024-11-13 23:46:02,157 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:46:02,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:02,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2088212851, now seen corresponding path program 1 times [2024-11-13 23:46:02,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:02,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992964405] [2024-11-13 23:46:02,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:02,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:31,001 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 25 proven. 59 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-13 23:46:31,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:31,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992964405] [2024-11-13 23:46:31,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992964405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:31,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408337463] [2024-11-13 23:46:31,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:31,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:31,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:31,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:31,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:46:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:32,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 121 conjuncts are in the unsatisfiable core [2024-11-13 23:46:32,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:32,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:32,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:32,944 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 39 treesize of output 26 [2024-11-13 23:46:33,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:33,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:33,423 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 32 treesize of output 28 [2024-11-13 23:46:33,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:33,592 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 39 treesize of output 26 [2024-11-13 23:46:34,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:34,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:34,605 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 46 treesize of output 38 [2024-11-13 23:46:35,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:35,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:35,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 51 [2024-11-13 23:46:35,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:35,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:35,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 51 [2024-11-13 23:46:37,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:37,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:37,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 68 [2024-11-13 23:46:38,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:38,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:38,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 80 [2024-11-13 23:46:39,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:39,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:39,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 92 [2024-11-13 23:46:40,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:40,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:40,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 14 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 104 [2024-11-13 23:46:44,371 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 249 treesize of output 249 [2024-11-13 23:46:44,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:44,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:44,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 357 treesize of output 329 [2024-11-13 23:46:45,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 279 treesize of output 261 [2024-11-13 23:46:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 320 proven. 41 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 23:46:59,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:47:00,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:47:00,972 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 312 treesize of output 313 [2024-11-13 23:47:33,586 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 9 treesize of output 1 [2024-11-13 23:47:33,799 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-13 23:47:33,800 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 74 [2024-11-13 23:51:45,690 WARN L286 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:52:09,800 WARN L286 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:53:04,148 WARN L286 SmtUtils]: Spent 12.00s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:53:20,360 WARN L286 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 64 DAG size of output: 63 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:53:30,403 WARN L286 SmtUtils]: Spent 9.62s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:53:45,205 WARN L286 SmtUtils]: Spent 8.83s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:54:11,759 WARN L286 SmtUtils]: Spent 16.43s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:54:17,726 WARN L286 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:54:25,298 WARN L286 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:55:00,175 WARN L286 SmtUtils]: Spent 23.93s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:55:18,503 WARN L286 SmtUtils]: Spent 18.33s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:55:21,470 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-13 23:55:21,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-13 23:55:21,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2024-11-13 23:55:21,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1442120560] [2024-11-13 23:55:21,545 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-13 23:55:21,548 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:55:21,554 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:55:21,561 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:55:21,561 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:55:21,680 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkSatTerm(SmtUtils.java:326) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.isFalse(SymbolicTools.java:220) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.RelationCheckUtil.isEqBottom_SolverAlphaSolver(RelationCheckUtil.java:56) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.ExplicitValueDomain.isEqBottom(ExplicitValueDomain.java:73) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.CompoundDomain.isEqBottom(CompoundDomain.java:84) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.StatsWrapperDomain.isEqBottom(StatsWrapperDomain.java:69) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.earlyExitAfterStep(DagInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 44 more [2024-11-13 23:55:21,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:55:21,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-13 23:55:21,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439463845] [2024-11-13 23:55:21,693 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:55:21,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 23:55:21,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:55:21,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 23:55:21,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=631, Invalid=2675, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 23:55:21,740 INFO L87 Difference]: Start difference. First 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) Second operand has 22 states, 10 states have (on average 2.6) internal successors, (26), 19 states have internal predecessors, (26), 14 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 6 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-13 23:55:21,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=631, Invalid=2675, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 23:55:21,762 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:55:21,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:55:21,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 23:55:21,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 23:55:21,965 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:278) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2024-11-13 23:55:21,968 INFO L158 Benchmark]: Toolchain (without parser) took 561913.60ms. Allocated memory was 117.4MB in the beginning and 880.8MB in the end (delta: 763.4MB). Free memory was 93.0MB in the beginning and 471.1MB in the end (delta: -378.0MB). Peak memory consumption was 383.9MB. Max. memory is 16.1GB. [2024-11-13 23:55:21,969 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:55:21,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.10ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 78.0MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:55:21,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.40ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 73.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:55:21,972 INFO L158 Benchmark]: Boogie Preprocessor took 67.20ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 70.6MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:55:21,973 INFO L158 Benchmark]: RCFGBuilder took 1414.74ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 73.3MB in the end (delta: -2.7MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-11-13 23:55:21,973 INFO L158 Benchmark]: TraceAbstraction took 559948.47ms. Allocated memory was 117.4MB in the beginning and 880.8MB in the end (delta: 763.4MB). Free memory was 72.7MB in the beginning and 471.1MB in the end (delta: -398.4MB). Peak memory consumption was 365.9MB. Max. memory is 16.1GB. [2024-11-13 23:55:21,976 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.10ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 78.0MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.40ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 73.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.20ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 70.6MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1414.74ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 73.3MB in the end (delta: -2.7MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * TraceAbstraction took 559948.47ms. Allocated memory was 117.4MB in the beginning and 880.8MB in the end (delta: 763.4MB). Free memory was 72.7MB in the beginning and 471.1MB in the end (delta: -398.4MB). Peak memory consumption was 365.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E --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 f0a95c837253461e666811310d33281cfc4592599bb0e38960c7585c8a470237 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:55:24,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:55:25,114 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:55:25,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:55:25,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:55:25,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:55:25,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:55:25,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:55:25,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:55:25,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:55:25,172 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:55:25,173 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:55:25,173 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:55:25,173 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:55:25,173 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:55:25,173 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:55:25,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:55:25,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:55:25,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:55:25,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:55:25,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:55:25,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:55:25,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:55:25,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:55:25,175 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:55:25,175 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:55:25,175 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:55:25,175 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:55:25,175 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:55:25,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:55:25,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:55:25,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:55:25,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:55:25,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:55:25,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:55:25,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:55:25,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:55:25,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:55:25,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:55:25,176 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:55:25,176 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:55:25,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:55:25,176 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:55:25,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E 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 -> f0a95c837253461e666811310d33281cfc4592599bb0e38960c7585c8a470237 [2024-11-13 23:55:25,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:55:25,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:55:25,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:55:25,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:55:25,639 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:55:25,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i Unable to find full path for "g++" [2024-11-13 23:55:28,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:55:28,384 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:55:28,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i [2024-11-13 23:55:28,405 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/data/415c71a09/3515272a4f094bdbab04c923c904bf72/FLAGc22b510b5 [2024-11-13 23:55:28,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/data/415c71a09/3515272a4f094bdbab04c923c904bf72 [2024-11-13 23:55:28,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:55:28,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:55:28,443 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:55:28,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:55:28,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:55:28,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:55:28" (1/1) ... [2024-11-13 23:55:28,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77cb6a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:28, skipping insertion in model container [2024-11-13 23:55:28,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:55:28" (1/1) ... [2024-11-13 23:55:28,484 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:55:28,716 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i[916,929] [2024-11-13 23:55:28,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:55:28,877 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:55:28,897 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i[916,929] [2024-11-13 23:55:29,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:55:29,062 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:55:29,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29 WrapperNode [2024-11-13 23:55:29,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:55:29,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:55:29,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:55:29,064 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:55:29,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,166 INFO L138 Inliner]: procedures = 33, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 428 [2024-11-13 23:55:29,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:55:29,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:55:29,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:55:29,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:55:29,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:55:29,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:55:29,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:55:29,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:55:29,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (1/1) ... [2024-11-13 23:55:29,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:55:29,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:55:29,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:55:29,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:55:29,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:55:29,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-13 23:55:29,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-13 23:55:29,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:55:29,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-13 23:55:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-13 23:55:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-13 23:55:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-13 23:55:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:55:29,382 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:55:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:55:29,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:55:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-13 23:55:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-13 23:55:29,550 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:55:29,552 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:55:30,655 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-13 23:55:30,656 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:55:30,670 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:55:30,670 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:55:30,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:55:30 BoogieIcfgContainer [2024-11-13 23:55:30,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:55:30,674 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:55:30,674 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:55:30,680 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:55:30,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:55:28" (1/3) ... [2024-11-13 23:55:30,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292d6e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:55:30, skipping insertion in model container [2024-11-13 23:55:30,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:55:29" (2/3) ... [2024-11-13 23:55:30,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292d6e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:55:30, skipping insertion in model container [2024-11-13 23:55:30,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:55:30" (3/3) ... [2024-11-13 23:55:30,683 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-84.i [2024-11-13 23:55:30,702 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:55:30,704 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-84.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:55:30,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:55:30,802 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29474e0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:55:30,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:55:30,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 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) [2024-11-13 23:55:30,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-13 23:55:30,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:55:30,831 INFO L215 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] [2024-11-13 23:55:30,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:55:30,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:55:30,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1590431284, now seen corresponding path program 1 times [2024-11-13 23:55:30,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:55:30,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640401767] [2024-11-13 23:55:30,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:55:30,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:55:30,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:55:30,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:55:30,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 23:55:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:55:31,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:55:31,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:55:31,608 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 [2024-11-13 23:55:32,235 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-13 23:55:32,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:55:32,237 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:55:32,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640401767] [2024-11-13 23:55:32,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640401767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:55:32,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:55:32,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:55:32,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477803377] [2024-11-13 23:55:32,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:55:32,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:55:32,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:55:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:55:32,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:55:32,285 INFO L87 Difference]: Start difference. First operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 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 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-13 23:55:32,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:55:32,822 INFO L93 Difference]: Finished difference Result 296 states and 475 transitions. [2024-11-13 23:55:32,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:55:32,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 150 [2024-11-13 23:55:32,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:55:32,835 INFO L225 Difference]: With dead ends: 296 [2024-11-13 23:55:32,836 INFO L226 Difference]: Without dead ends: 196 [2024-11-13 23:55:32,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:55:32,844 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 71 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:55:32,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 481 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 23:55:32,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-13 23:55:32,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 167. [2024-11-13 23:55:32,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 124 states have internal predecessors, (158), 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) [2024-11-13 23:55:32,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 238 transitions. [2024-11-13 23:55:32,955 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 238 transitions. Word has length 150 [2024-11-13 23:55:32,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:55:32,958 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 238 transitions. [2024-11-13 23:55:32,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-13 23:55:32,959 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 238 transitions. [2024-11-13 23:55:32,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-13 23:55:32,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:55:32,965 INFO L215 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] [2024-11-13 23:55:32,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-13 23:55:33,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:55:33,170 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:55:33,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:55:33,171 INFO L85 PathProgramCache]: Analyzing trace with hash 249610602, now seen corresponding path program 1 times [2024-11-13 23:55:33,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:55:33,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666652791] [2024-11-13 23:55:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:55:33,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:55:33,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:55:33,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:55:33,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 23:55:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:55:33,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:55:33,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:55:33,745 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-13 23:55:33,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:55:33,745 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:55:33,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666652791] [2024-11-13 23:55:33,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666652791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:55:33,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:55:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:55:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212725664] [2024-11-13 23:55:33,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:55:33,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:55:33,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:55:33,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:55:33,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:55:33,749 INFO L87 Difference]: Start difference. First operand 167 states and 238 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) [2024-11-13 23:55:33,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:55:33,891 INFO L93 Difference]: Finished difference Result 270 states and 386 transitions. [2024-11-13 23:55:33,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:55:33,892 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 [2024-11-13 23:55:33,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:55:33,894 INFO L225 Difference]: With dead ends: 270 [2024-11-13 23:55:33,895 INFO L226 Difference]: Without dead ends: 174 [2024-11-13 23:55:33,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:55:33,896 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:55:33,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 653 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:55:33,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-13 23:55:33,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 173. [2024-11-13 23:55:33,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 130 states have internal predecessors, (164), 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) [2024-11-13 23:55:33,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 244 transitions. [2024-11-13 23:55:33,922 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 244 transitions. Word has length 158 [2024-11-13 23:55:33,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:55:33,923 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 244 transitions. [2024-11-13 23:55:33,923 INFO L472 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) [2024-11-13 23:55:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 244 transitions. [2024-11-13 23:55:33,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-13 23:55:33,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:55:33,926 INFO L215 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] [2024-11-13 23:55:33,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-13 23:55:34,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:55:34,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:55:34,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:55:34,128 INFO L85 PathProgramCache]: Analyzing trace with hash 251457644, now seen corresponding path program 1 times [2024-11-13 23:55:34,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:55:34,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241508737] [2024-11-13 23:55:34,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:55:34,129 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 [2024-11-13 23:55:34,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:55:34,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:55:34,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 23:55:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:55:34,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 23:55:34,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:55:36,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:55:36,407 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 19 treesize of output 1 [2024-11-13 23:55:36,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-13 23:55:37,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 23:55:37,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 23:55:38,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-13 23:55:38,872 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:55:38,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 49 [2024-11-13 23:55:39,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2024-11-13 23:55:39,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2024-11-13 23:55:39,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2024-11-13 23:55:39,764 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:55:39,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 29 [2024-11-13 23:55:39,995 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-13 23:55:39,995 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:55:39,996 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:55:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241508737] [2024-11-13 23:55:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241508737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:55:39,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:55:39,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 23:55:39,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006683306] [2024-11-13 23:55:39,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:55:39,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 23:55:39,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:55:39,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 23:55:40,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-13 23:55:40,002 INFO L87 Difference]: Start difference. First operand 173 states and 244 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 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) [2024-11-13 23:55:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:55:44,247 INFO L93 Difference]: Finished difference Result 334 states and 468 transitions. [2024-11-13 23:55:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 23:55:44,248 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 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 158 [2024-11-13 23:55:44,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:55:44,251 INFO L225 Difference]: With dead ends: 334 [2024-11-13 23:55:44,251 INFO L226 Difference]: Without dead ends: 232 [2024-11-13 23:55:44,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-13 23:55:44,253 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 255 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:55:44,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 493 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 23:55:44,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-13 23:55:44,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 199. [2024-11-13 23:55:44,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 156 states have (on average 1.2884615384615385) internal successors, (201), 156 states have internal predecessors, (201), 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) [2024-11-13 23:55:44,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 281 transitions. [2024-11-13 23:55:44,295 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 281 transitions. Word has length 158 [2024-11-13 23:55:44,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:55:44,295 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 281 transitions. [2024-11-13 23:55:44,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 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) [2024-11-13 23:55:44,296 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 281 transitions. [2024-11-13 23:55:44,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 23:55:44,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:55:44,299 INFO L215 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, 1] [2024-11-13 23:55:44,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-13 23:55:44,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:55:44,500 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:55:44,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:55:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1704916879, now seen corresponding path program 1 times [2024-11-13 23:55:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:55:44,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764493356] [2024-11-13 23:55:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:55:44,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:55:44,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:55:44,504 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:55:44,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 23:55:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:55:45,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-13 23:55:45,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:55:46,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:55:46,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-13 23:55:46,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-13 23:55:47,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-13 23:55:48,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:55:48,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-11-13 23:55:48,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 40 [2024-11-13 23:55:50,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:55:50,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 49 [2024-11-13 23:55:50,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-13 23:55:50,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-13 23:55:50,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-13 23:55:50,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:55:50,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 31 [2024-11-13 23:55:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 533 proven. 42 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-11-13 23:55:51,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:55:51,433 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_138 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_139 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_138) |c_~#float_Array_0~0.base| v_ArrVal_139) |c_~#unsigned_char_Array_0~0.base|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))))) is different from false [2024-11-13 23:55:52,524 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:55:52,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764493356] [2024-11-13 23:55:52,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764493356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:55:52,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2129460078] [2024-11-13 23:55:52,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:55:52,525 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:55:52,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:55:52,529 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:55:52,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-13 23:55:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:55:53,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-13 23:55:53,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:55:54,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 23:55:55,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-13 23:55:55,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-11-13 23:55:56,955 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 42 treesize of output 29 [2024-11-13 23:55:57,406 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 39 treesize of output 37 [2024-11-13 23:55:58,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-13 23:55:59,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2024-11-13 23:55:59,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 37 [2024-11-13 23:55:59,814 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 50 treesize of output 37 [2024-11-13 23:56:00,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 37 [2024-11-13 23:56:00,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 38 [2024-11-13 23:56:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 551 proven. 48 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-13 23:56:00,977 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:56:01,329 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_181 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_181) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvslt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))))))) is different from false [2024-11-13 23:56:01,362 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_180 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_180) |c_~#float_Array_0~0.base| v_ArrVal_181) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvslt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))))))) is different from false [2024-11-13 23:56:01,402 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_180 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_179) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_180) |c_~#float_Array_0~0.base| v_ArrVal_181) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))) (not (bvslt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))))))) is different from false [2024-11-13 23:56:03,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2129460078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:56:03,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886596053] [2024-11-13 23:56:03,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:56:03,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:56:03,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:56:03,262 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:56:03,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:56:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:56:03,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 23:56:03,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:56:04,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-13 23:56:04,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-13 23:56:05,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:56:05,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-13 23:56:07,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:56:07,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-13 23:56:07,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 40 [2024-11-13 23:56:09,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:56:09,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 49 [2024-11-13 23:56:09,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-13 23:56:09,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-13 23:56:09,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-13 23:56:10,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:56:10,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 31 [2024-11-13 23:56:10,488 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 557 proven. 42 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-13 23:56:10,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:56:10,692 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_220 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_139 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_220) |c_~#float_Array_0~0.base| v_ArrVal_139) |c_~#unsigned_char_Array_0~0.base|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))))) is different from false [2024-11-13 23:56:11,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886596053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:56:11,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:56:11,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 20] total 53 [2024-11-13 23:56:11,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646563580] [2024-11-13 23:56:11,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:56:11,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-13 23:56:11,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:56:11,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-13 23:56:11,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=4116, Unknown=94, NotChecked=690, Total=5402 [2024-11-13 23:56:11,413 INFO L87 Difference]: Start difference. First operand 199 states and 281 transitions. Second operand has 54 states, 49 states have (on average 3.693877551020408) internal successors, (181), 52 states have internal predecessors, (181), 17 states have call successors, (48), 12 states have call predecessors, (48), 17 states have return successors, (48), 13 states have call predecessors, (48), 17 states have call successors, (48) [2024-11-13 23:56:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:56:26,124 INFO L93 Difference]: Finished difference Result 430 states and 576 transitions. [2024-11-13 23:56:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-13 23:56:26,125 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 49 states have (on average 3.693877551020408) internal successors, (181), 52 states have internal predecessors, (181), 17 states have call successors, (48), 12 states have call predecessors, (48), 17 states have return successors, (48), 13 states have call predecessors, (48), 17 states have call successors, (48) Word has length 160 [2024-11-13 23:56:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:56:26,128 INFO L225 Difference]: With dead ends: 430 [2024-11-13 23:56:26,128 INFO L226 Difference]: Without dead ends: 312 [2024-11-13 23:56:26,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 503 SyntacticMatches, 4 SemanticMatches, 94 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2954 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=1021, Invalid=7093, Unknown=96, NotChecked=910, Total=9120 [2024-11-13 23:56:26,133 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 532 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:56:26,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1326 Invalid, 3330 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2024-11-13 23:56:26,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-13 23:56:26,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 258. [2024-11-13 23:56:26,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 207 states have (on average 1.2753623188405796) internal successors, (264), 207 states have internal predecessors, (264), 40 states have call successors, (40), 10 states have call predecessors, (40), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 23:56:26,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 344 transitions. [2024-11-13 23:56:26,190 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 344 transitions. Word has length 160 [2024-11-13 23:56:26,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:56:26,191 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 344 transitions. [2024-11-13 23:56:26,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 49 states have (on average 3.693877551020408) internal successors, (181), 52 states have internal predecessors, (181), 17 states have call successors, (48), 12 states have call predecessors, (48), 17 states have return successors, (48), 13 states have call predecessors, (48), 17 states have call successors, (48) [2024-11-13 23:56:26,191 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 344 transitions. [2024-11-13 23:56:26,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 23:56:26,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:56:26,195 INFO L215 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, 1] [2024-11-13 23:56:26,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-13 23:56:26,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 23:56:26,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-13 23:56:26,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-13 23:56:26,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:56:26,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:56:26,797 INFO L85 PathProgramCache]: Analyzing trace with hash -264168313, now seen corresponding path program 1 times [2024-11-13 23:56:26,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:56:26,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430907174] [2024-11-13 23:56:26,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:56:26,798 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 [2024-11-13 23:56:26,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:56:26,802 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:56:26,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-13 23:56:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:56:27,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 23:56:27,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:56:28,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:56:29,205 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 19 treesize of output 1 [2024-11-13 23:56:29,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 38 [2024-11-13 23:56:29,360 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 40 treesize of output 36 [2024-11-13 23:56:29,418 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 40 treesize of output 36 [2024-11-13 23:56:29,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:56:29,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 60 [2024-11-13 23:56:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-13 23:56:29,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:56:29,756 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:56:29,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430907174] [2024-11-13 23:56:29,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430907174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:56:29,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:56:29,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 23:56:29,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690850455] [2024-11-13 23:56:29,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:56:29,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 23:56:29,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:56:29,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 23:56:29,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 23:56:29,758 INFO L87 Difference]: Start difference. First operand 258 states and 344 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2024-11-13 23:56:31,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:56:31,684 INFO L93 Difference]: Finished difference Result 497 states and 671 transitions. [2024-11-13 23:56:31,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 23:56:31,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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 160 [2024-11-13 23:56:31,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:56:31,689 INFO L225 Difference]: With dead ends: 497 [2024-11-13 23:56:31,689 INFO L226 Difference]: Without dead ends: 348 [2024-11-13 23:56:31,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-13 23:56:31,693 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 206 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:56:31,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 393 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 23:56:31,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-13 23:56:31,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 321. [2024-11-13 23:56:31,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 270 states have (on average 1.3185185185185184) internal successors, (356), 270 states have internal predecessors, (356), 40 states have call successors, (40), 10 states have call predecessors, (40), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 23:56:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 436 transitions. [2024-11-13 23:56:31,766 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 436 transitions. Word has length 160 [2024-11-13 23:56:31,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:56:31,768 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 436 transitions. [2024-11-13 23:56:31,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2024-11-13 23:56:31,769 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 436 transitions. [2024-11-13 23:56:31,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 23:56:31,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:56:31,772 INFO L215 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, 1] [2024-11-13 23:56:31,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-13 23:56:31,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:56:31,972 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:56:31,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:56:31,973 INFO L85 PathProgramCache]: Analyzing trace with hash 595905711, now seen corresponding path program 1 times [2024-11-13 23:56:31,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:56:31,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383275988] [2024-11-13 23:56:31,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:56:31,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:56:31,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:56:31,976 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:56:31,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-13 23:56:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:56:32,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:56:32,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:56:32,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:56:32,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-11-13 23:56:32,399 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-13 23:56:32,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:56:32,399 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:56:32,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383275988] [2024-11-13 23:56:32,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383275988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:56:32,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:56:32,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:56:32,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280065890] [2024-11-13 23:56:32,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:56:32,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:56:32,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:56:32,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:56:32,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:56:32,401 INFO L87 Difference]: Start difference. First operand 321 states and 436 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-13 23:56:33,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:56:33,129 INFO L93 Difference]: Finished difference Result 568 states and 771 transitions. [2024-11-13 23:56:33,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:56:33,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 160 [2024-11-13 23:56:33,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:56:33,133 INFO L225 Difference]: With dead ends: 568 [2024-11-13 23:56:33,134 INFO L226 Difference]: Without dead ends: 377 [2024-11-13 23:56:33,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:56:33,135 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 38 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:56:33,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 451 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:56:33,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-13 23:56:33,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 331. [2024-11-13 23:56:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 280 states have (on average 1.3214285714285714) internal successors, (370), 280 states have internal predecessors, (370), 40 states have call successors, (40), 10 states have call predecessors, (40), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 23:56:33,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 450 transitions. [2024-11-13 23:56:33,209 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 450 transitions. Word has length 160 [2024-11-13 23:56:33,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:56:33,210 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 450 transitions. [2024-11-13 23:56:33,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-13 23:56:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 450 transitions. [2024-11-13 23:56:33,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 23:56:33,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:56:33,215 INFO L215 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, 1] [2024-11-13 23:56:33,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-13 23:56:33,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:56:33,417 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:56:33,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:56:33,417 INFO L85 PathProgramCache]: Analyzing trace with hash -683957967, now seen corresponding path program 1 times [2024-11-13 23:56:33,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:56:33,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744775354] [2024-11-13 23:56:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:56:33,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:56:33,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:56:33,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:56:33,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-13 23:56:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:56:33,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 23:56:33,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:56:35,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-13 23:56:35,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-13 23:56:36,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:56:36,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 47 [2024-11-13 23:56:37,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2024-11-13 23:56:38,257 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:56:38,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 47 [2024-11-13 23:56:38,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 45 [2024-11-13 23:56:38,640 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 58 treesize of output 45 [2024-11-13 23:56:38,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 45 [2024-11-13 23:56:38,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:56:38,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 28 [2024-11-13 23:56:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 443 proven. 27 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-13 23:56:39,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:56:39,294 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_321 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_321) |c_~#unsigned_char_Array_0~0.base|))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32)))))))) is different from false [2024-11-13 23:56:39,310 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_321 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_320 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_320) |c_~#float_Array_0~0.base| v_ArrVal_321) |c_~#unsigned_char_Array_0~0.base|))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32)))))))) is different from false [2024-11-13 23:56:39,331 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_321 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_320 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_319 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_319) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_320) |c_~#float_Array_0~0.base| v_ArrVal_321) |c_~#unsigned_char_Array_0~0.base|))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32)))))))) is different from false [2024-11-13 23:56:53,821 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:56:53,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744775354] [2024-11-13 23:56:53,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744775354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:56:53,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1619932391] [2024-11-13 23:56:53,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:56:53,822 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:56:53,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:56:53,824 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:56:53,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-13 23:56:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:56:54,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-13 23:56:54,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:56:55,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 23:56:56,910 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 33 treesize of output 17 [2024-11-13 23:56:57,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-13 23:56:58,954 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 39 treesize of output 37 [2024-11-13 23:57:00,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2024-11-13 23:57:01,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-11-13 23:57:03,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 50 [2024-11-13 23:57:03,941 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 65 treesize of output 48 [2024-11-13 23:57:04,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 48 [2024-11-13 23:57:04,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 48 [2024-11-13 23:57:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 568 proven. 54 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-13 23:57:05,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:57:05,770 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_363 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_363) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (or (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) .cse0))))) is different from false [2024-11-13 23:57:05,797 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_362 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_363 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_362) |c_~#float_Array_0~0.base| v_ArrVal_363) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (or (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) .cse0))))) is different from false [2024-11-13 23:57:05,849 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_361 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_362 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_363 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_361) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_362) |c_~#float_Array_0~0.base| v_ArrVal_363) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (or (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) .cse1) (not (bvsgt .cse1 ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))))))) is different from false [2024-11-13 23:57:07,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1619932391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:57:07,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478324008] [2024-11-13 23:57:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:57:07,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:57:07,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:57:07,740 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:57:07,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 23:57:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:57:07,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-13 23:57:07,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:57:09,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-13 23:57:10,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:57:10,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-13 23:57:12,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:57:12,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-11-13 23:57:13,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:57:13,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 56 [2024-11-13 23:57:14,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 41 [2024-11-13 23:57:16,812 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:57:16,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 66 [2024-11-13 23:57:16,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 63 [2024-11-13 23:57:17,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 63 [2024-11-13 23:57:17,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 63 [2024-11-13 23:57:18,487 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 533 proven. 54 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-13 23:57:18,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:57:19,500 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_404 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_404) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (or (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) .cse0))))) is different from false [2024-11-13 23:57:19,538 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_403 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_404 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_403) |c_~#float_Array_0~0.base| v_ArrVal_404) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (or (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) .cse0))))) is different from false [2024-11-13 23:57:19,582 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_402 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_403 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_404 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_402) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_403) |c_~#float_Array_0~0.base| v_ArrVal_404) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (or (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) .cse0))))) is different from false [2024-11-13 23:57:20,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478324008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:57:20,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:57:20,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 24, 23] total 63 [2024-11-13 23:57:20,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693046627] [2024-11-13 23:57:20,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:57:20,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-13 23:57:20,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:57:20,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-13 23:57:20,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=745, Invalid=5917, Unknown=16, NotChecked=1512, Total=8190 [2024-11-13 23:57:20,666 INFO L87 Difference]: Start difference. First operand 331 states and 450 transitions. Second operand has 64 states, 56 states have (on average 3.4107142857142856) internal successors, (191), 59 states have internal predecessors, (191), 20 states have call successors, (52), 12 states have call predecessors, (52), 20 states have return successors, (52), 16 states have call predecessors, (52), 20 states have call successors, (52) [2024-11-13 23:57:40,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:57:40,555 INFO L93 Difference]: Finished difference Result 676 states and 915 transitions. [2024-11-13 23:57:40,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 23:57:40,556 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 56 states have (on average 3.4107142857142856) internal successors, (191), 59 states have internal predecessors, (191), 20 states have call successors, (52), 12 states have call predecessors, (52), 20 states have return successors, (52), 16 states have call predecessors, (52), 20 states have call successors, (52) Word has length 160 [2024-11-13 23:57:40,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:57:40,559 INFO L225 Difference]: With dead ends: 676 [2024-11-13 23:57:40,559 INFO L226 Difference]: Without dead ends: 475 [2024-11-13 23:57:40,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 484 SyntacticMatches, 6 SemanticMatches, 118 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 4346 ImplicationChecksByTransitivity, 37.2s TimeCoverageRelationStatistics Valid=1567, Invalid=10663, Unknown=16, NotChecked=2034, Total=14280 [2024-11-13 23:57:40,564 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 1197 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 3287 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 3480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 3287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:57:40,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 1304 Invalid, 3480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 3287 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2024-11-13 23:57:40,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-13 23:57:40,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 371. [2024-11-13 23:57:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 320 states have (on average 1.33125) internal successors, (426), 320 states have internal predecessors, (426), 40 states have call successors, (40), 10 states have call predecessors, (40), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 23:57:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 506 transitions. [2024-11-13 23:57:40,632 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 506 transitions. Word has length 160 [2024-11-13 23:57:40,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:57:40,633 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 506 transitions. [2024-11-13 23:57:40,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 56 states have (on average 3.4107142857142856) internal successors, (191), 59 states have internal predecessors, (191), 20 states have call successors, (52), 12 states have call predecessors, (52), 20 states have return successors, (52), 16 states have call predecessors, (52), 20 states have call successors, (52) [2024-11-13 23:57:40,633 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 506 transitions. [2024-11-13 23:57:40,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 23:57:40,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:57:40,636 INFO L215 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, 1] [2024-11-13 23:57:40,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2024-11-13 23:57:40,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 23:57:41,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-13 23:57:41,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:57:41,237 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:57:41,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:57:41,237 INFO L85 PathProgramCache]: Analyzing trace with hash -123619703, now seen corresponding path program 1 times [2024-11-13 23:57:41,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:57:41,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74155211] [2024-11-13 23:57:41,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:57:41,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:57:41,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:57:41,240 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:57:41,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-13 23:57:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:57:41,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 23:57:41,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:57:41,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:42,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-13 23:57:42,570 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 18 treesize of output 13 [2024-11-13 23:57:42,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-13 23:57:43,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-13 23:57:43,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-13 23:57:44,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-13 23:57:44,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-13 23:57:44,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-13 23:57:45,273 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 18 treesize of output 13 [2024-11-13 23:57:45,730 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 18 treesize of output 13 [2024-11-13 23:57:45,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-13 23:57:45,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-13 23:57:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 83 proven. 192 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2024-11-13 23:57:46,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:57:46,516 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_442 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_443 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_441 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_441))) (or (not (= (_ bv0 8) ((_ extract 7 0) (select (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)))) (= ((_ extract 7 0) (select (select (store (store .cse0 |c_~#signed_short_int_Array_0~0.base| v_ArrVal_442) |c_~#float_Array_0~0.base| v_ArrVal_443) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8))))) is different from false [2024-11-13 23:57:46,655 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:57:46,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74155211] [2024-11-13 23:57:46,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74155211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:57:46,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [782564888] [2024-11-13 23:57:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:57:46,655 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:57:46,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:57:46,660 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:57:46,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-13 23:57:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:57:47,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 23:57:47,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:57:47,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 23:57:47,827 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 [2024-11-13 23:57:48,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:48,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:48,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:48,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:49,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:49,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:49,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:50,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:50,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:50,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-13 23:57:50,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-13 23:57:50,676 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-11-13 23:57:50,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:57:50,799 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_443 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_482 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 8) ((_ extract 7 0) (select (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_482) |c_~#float_Array_0~0.base| v_ArrVal_443) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)))) is different from false [2024-11-13 23:57:50,902 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_442 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_443 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_481 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_481))) (or (= (_ bv0 8) ((_ extract 7 0) (select (select (store (store .cse0 |c_~#signed_short_int_Array_0~0.base| v_ArrVal_442) |c_~#float_Array_0~0.base| v_ArrVal_443) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (not (= ((_ extract 7 0) (select (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))))) is different from false [2024-11-13 23:57:51,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [782564888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:57:51,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172704972] [2024-11-13 23:57:51,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:57:51,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:57:51,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:57:51,036 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:57:51,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 23:57:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:57:51,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:57:51,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:57:52,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-13 23:57:52,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-13 23:57:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-13 23:57:53,035 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:57:53,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172704972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:57:53,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:57:53,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13, 9] total 16 [2024-11-13 23:57:53,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182200906] [2024-11-13 23:57:53,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:57:53,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 23:57:53,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:57:53,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 23:57:53,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=344, Unknown=30, NotChecked=126, Total=600 [2024-11-13 23:57:53,037 INFO L87 Difference]: Start difference. First operand 371 states and 506 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 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) [2024-11-13 23:57:54,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:57:54,117 INFO L93 Difference]: Finished difference Result 617 states and 840 transitions. [2024-11-13 23:57:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:57:54,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 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 160 [2024-11-13 23:57:54,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:57:54,121 INFO L225 Difference]: With dead ends: 617 [2024-11-13 23:57:54,121 INFO L226 Difference]: Without dead ends: 395 [2024-11-13 23:57:54,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 520 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=113, Invalid=374, Unknown=31, NotChecked=132, Total=650 [2024-11-13 23:57:54,123 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 144 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:57:54,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 380 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 23:57:54,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-13 23:57:54,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 368. [2024-11-13 23:57:54,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 317 states have (on average 1.3280757097791798) internal successors, (421), 317 states have internal predecessors, (421), 40 states have call successors, (40), 10 states have call predecessors, (40), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 23:57:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 501 transitions. [2024-11-13 23:57:54,170 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 501 transitions. Word has length 160 [2024-11-13 23:57:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:57:54,170 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 501 transitions. [2024-11-13 23:57:54,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 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) [2024-11-13 23:57:54,171 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 501 transitions. [2024-11-13 23:57:54,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 23:57:54,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:57:54,172 INFO L215 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, 1] [2024-11-13 23:57:54,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-13 23:57:54,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 23:57:54,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-13 23:57:54,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-13 23:57:54,774 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:57:54,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:57:54,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1012650129, now seen corresponding path program 1 times [2024-11-13 23:57:54,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:57:54,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376694405] [2024-11-13 23:57:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:57:54,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:57:54,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:57:54,777 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:57:54,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-13 23:57:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:57:55,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 23:57:55,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:57:56,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:57:56,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-13 23:57:57,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:57:57,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-13 23:57:57,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:57:57,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-11-13 23:57:59,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:57:59,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-11-13 23:58:00,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 56 [2024-11-13 23:58:01,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:58:01,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 74 [2024-11-13 23:58:02,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 62 [2024-11-13 23:58:02,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 62 [2024-11-13 23:58:02,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 62 [2024-11-13 23:58:03,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:58:03,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 92 treesize of output 38 [2024-11-13 23:58:03,140 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 557 proven. 42 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-13 23:58:03,140 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:58:03,642 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_549 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_549) |c_~#float_Array_0~0.base| v_ArrVal_550) |c_~#unsigned_char_Array_0~0.base|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))))) is different from false [2024-11-13 23:58:03,665 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_548) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_549) |c_~#float_Array_0~0.base| v_ArrVal_550) |c_~#unsigned_char_Array_0~0.base|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))))) is different from false [2024-11-13 23:58:12,431 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:58:12,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376694405] [2024-11-13 23:58:12,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376694405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:58:12,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1622788200] [2024-11-13 23:58:12,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:58:12,431 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:58:12,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:58:12,433 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:58:12,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-13 23:58:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:58:13,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-13 23:58:13,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:58:14,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 23:58:15,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-11-13 23:58:16,332 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 30 treesize of output 32 [2024-11-13 23:58:17,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2024-11-13 23:58:18,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2024-11-13 23:58:19,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 38 [2024-11-13 23:58:21,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 60 [2024-11-13 23:58:22,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 53 [2024-11-13 23:58:22,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 53 [2024-11-13 23:58:22,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 53 [2024-11-13 23:58:23,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 41 [2024-11-13 23:58:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 519 proven. 48 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-13 23:58:23,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:58:23,940 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_590 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_590) |c_~#float_Array_0~0.base| v_ArrVal_550) |c_~#unsigned_char_Array_0~0.base|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))))) is different from false [2024-11-13 23:58:23,966 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_590 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_589) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_590) |c_~#float_Array_0~0.base| v_ArrVal_550) |c_~#unsigned_char_Array_0~0.base|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))))) is different from false [2024-11-13 23:58:26,000 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_588 (_ BitVec 32)) (v_ArrVal_590 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| (store (select |c_#memory_int| |c_~#unsigned_char_Array_0~0.base|) (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv6 32)) v_ArrVal_588)) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_589) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_590) |c_~#float_Array_0~0.base| v_ArrVal_550) |c_~#unsigned_char_Array_0~0.base|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))))) is different from false [2024-11-13 23:58:26,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1622788200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:58:26,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131828260] [2024-11-13 23:58:26,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:58:26,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:58:26,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:58:26,761 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:58:26,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 23:58:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:58:27,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 23:58:27,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:58:28,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-13 23:58:28,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:58:28,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-13 23:58:29,177 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:58:29,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-13 23:58:30,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:58:30,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-11-13 23:58:31,660 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 51 treesize of output 40 [2024-11-13 23:58:33,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:58:33,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 57 [2024-11-13 23:58:33,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 46 [2024-11-13 23:58:34,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 46 [2024-11-13 23:58:34,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 46 [2024-11-13 23:58:35,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:58:35,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 30 [2024-11-13 23:58:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 508 proven. 42 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-13 23:58:35,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:58:35,739 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_630 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_550 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_630) |c_~#float_Array_0~0.base| v_ArrVal_550) |c_~#unsigned_char_Array_0~0.base|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))))) is different from false [2024-11-13 23:58:35,762 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_630 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_629 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_629) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_630) |c_~#float_Array_0~0.base| v_ArrVal_550) |c_~#unsigned_char_Array_0~0.base|))) (bvsgt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))))) is different from false [2024-11-13 23:58:37,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131828260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:58:37,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:58:37,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 20] total 55 [2024-11-13 23:58:37,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842563581] [2024-11-13 23:58:37,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:58:37,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-13 23:58:37,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:58:37,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-13 23:58:37,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=589, Invalid=3694, Unknown=35, NotChecked=938, Total=5256 [2024-11-13 23:58:37,435 INFO L87 Difference]: Start difference. First operand 368 states and 501 transitions. Second operand has 56 states, 51 states have (on average 3.5098039215686274) internal successors, (179), 50 states have internal predecessors, (179), 15 states have call successors, (48), 10 states have call predecessors, (48), 15 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) [2024-11-13 23:58:55,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:58:55,248 INFO L93 Difference]: Finished difference Result 646 states and 873 transitions. [2024-11-13 23:58:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-13 23:58:55,249 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 51 states have (on average 3.5098039215686274) internal successors, (179), 50 states have internal predecessors, (179), 15 states have call successors, (48), 10 states have call predecessors, (48), 15 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) Word has length 160 [2024-11-13 23:58:55,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:58:55,252 INFO L225 Difference]: With dead ends: 646 [2024-11-13 23:58:55,252 INFO L226 Difference]: Without dead ends: 427 [2024-11-13 23:58:55,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 502 SyntacticMatches, 6 SemanticMatches, 93 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 2792 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=1153, Invalid=6496, Unknown=35, NotChecked=1246, Total=8930 [2024-11-13 23:58:55,256 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 598 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:58:55,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1506 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-11-13 23:58:55,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-13 23:58:55,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 372. [2024-11-13 23:58:55,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 321 states have (on average 1.32398753894081) internal successors, (425), 321 states have internal predecessors, (425), 40 states have call successors, (40), 10 states have call predecessors, (40), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 23:58:55,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 505 transitions. [2024-11-13 23:58:55,332 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 505 transitions. Word has length 160 [2024-11-13 23:58:55,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:58:55,332 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 505 transitions. [2024-11-13 23:58:55,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 51 states have (on average 3.5098039215686274) internal successors, (179), 50 states have internal predecessors, (179), 15 states have call successors, (48), 10 states have call predecessors, (48), 15 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) [2024-11-13 23:58:55,333 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 505 transitions. [2024-11-13 23:58:55,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 23:58:55,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:58:55,335 INFO L215 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, 1] [2024-11-13 23:58:55,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-11-13 23:58:55,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 23:58:55,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-13 23:58:55,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -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_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-13 23:58:55,936 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:58:55,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:58:55,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1682284625, now seen corresponding path program 1 times [2024-11-13 23:58:55,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:58:55,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208946273] [2024-11-13 23:58:55,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:58:55,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:58:55,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:58:55,942 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:58:55,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-13 23:58:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:58:56,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 23:58:56,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:58:58,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-13 23:58:58,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-13 23:58:59,842 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:58:59,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-13 23:59:00,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2024-11-13 23:59:01,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:59:01,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 40 [2024-11-13 23:59:02,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-13 23:59:02,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-13 23:59:02,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-13 23:59:02,514 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:59:02,514 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 72 treesize of output 30 [2024-11-13 23:59:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 443 proven. 27 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-13 23:59:02,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:59:02,756 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_669 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_669) |c_~#unsigned_char_Array_0~0.base|))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))))) is different from false [2024-11-13 23:59:02,775 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_668 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_669 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_668) |c_~#float_Array_0~0.base| v_ArrVal_669) |c_~#unsigned_char_Array_0~0.base|))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))))) is different from false [2024-11-13 23:59:03,730 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:59:03,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208946273] [2024-11-13 23:59:03,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208946273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:59:03,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1631692165] [2024-11-13 23:59:03,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:59:03,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:59:03,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:59:03,736 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:59:03,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-13 23:59:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:59:04,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-13 23:59:04,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:59:06,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-13 23:59:07,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2024-11-13 23:59:08,215 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 41 treesize of output 28 [2024-11-13 23:59:09,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2024-11-13 23:59:11,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2024-11-13 23:59:11,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 39 [2024-11-13 23:59:13,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 63 [2024-11-13 23:59:13,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-11-13 23:59:14,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-11-13 23:59:14,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-11-13 23:59:15,360 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 568 proven. 54 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-13 23:59:15,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:59:16,050 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_711) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvslt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))))))) is different from false [2024-11-13 23:59:16,075 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_710) |c_~#float_Array_0~0.base| v_ArrVal_711) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))) (not (bvslt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))))))) is different from false [2024-11-13 23:59:16,118 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_709) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_710) |c_~#float_Array_0~0.base| v_ArrVal_711) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvslt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))))))) is different from false [2024-11-13 23:59:19,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1631692165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:59:19,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824406583] [2024-11-13 23:59:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:59:19,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:59:19,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:59:19,036 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:59:19,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 23:59:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:59:19,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-13 23:59:19,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:59:21,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-13 23:59:22,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:59:22,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-13 23:59:24,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:59:24,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 56 [2024-11-13 23:59:27,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:59:27,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-11-13 23:59:28,920 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 71 treesize of output 56 [2024-11-13 23:59:31,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:59:31,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 122 treesize of output 88 [2024-11-13 23:59:32,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 88 [2024-11-13 23:59:33,008 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 111 treesize of output 88 [2024-11-13 23:59:33,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 88 [2024-11-13 23:59:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 548 proven. 54 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-13 23:59:34,593 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:59:35,868 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_749 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_749) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))) (not (bvslt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))))))) is different from false [2024-11-13 23:59:35,898 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_748 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_749 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_748) |c_~#float_Array_0~0.base| v_ArrVal_749) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvslt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))) (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))))))) is different from false [2024-11-13 23:59:35,943 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_747 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_748 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_749 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_747) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_748) |c_~#float_Array_0~0.base| v_ArrVal_749) |c_~#unsigned_char_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv4 32))))))) (or (not (bvsgt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))) (not (bvslt .cse0 ((_ zero_extend 24) ((_ extract 7 0) (select .cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))))))) is different from false [2024-11-13 23:59:37,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824406583] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:59:37,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:59:37,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 24, 26] total 65 [2024-11-13 23:59:37,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580382262] [2024-11-13 23:59:37,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:59:37,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-13 23:59:37,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:59:37,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-13 23:59:37,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=883, Invalid=6265, Unknown=24, NotChecked=1384, Total=8556 [2024-11-13 23:59:37,037 INFO L87 Difference]: Start difference. First operand 372 states and 505 transitions. Second operand has 66 states, 58 states have (on average 3.3448275862068964) internal successors, (194), 60 states have internal predecessors, (194), 21 states have call successors, (52), 13 states have call predecessors, (52), 21 states have return successors, (52), 18 states have call predecessors, (52), 21 states have call successors, (52) [2024-11-13 23:59:58,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:59:58,751 INFO L93 Difference]: Finished difference Result 713 states and 955 transitions. [2024-11-13 23:59:58,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 23:59:58,753 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 58 states have (on average 3.3448275862068964) internal successors, (194), 60 states have internal predecessors, (194), 21 states have call successors, (52), 13 states have call predecessors, (52), 21 states have return successors, (52), 18 states have call predecessors, (52), 21 states have call successors, (52) Word has length 160 [2024-11-13 23:59:58,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:59:58,756 INFO L225 Difference]: With dead ends: 713 [2024-11-13 23:59:58,759 INFO L226 Difference]: Without dead ends: 490 [2024-11-13 23:59:58,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 484 SyntacticMatches, 4 SemanticMatches, 120 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 4597 ImplicationChecksByTransitivity, 27.8s TimeCoverageRelationStatistics Valid=1757, Invalid=11133, Unknown=24, NotChecked=1848, Total=14762 [2024-11-13 23:59:58,763 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 1031 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 3401 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 3562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 3401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:59:58,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 1504 Invalid, 3562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 3401 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2024-11-13 23:59:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-13 23:59:58,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 386. [2024-11-13 23:59:58,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 335 states have (on average 1.3253731343283581) internal successors, (444), 335 states have internal predecessors, (444), 40 states have call successors, (40), 10 states have call predecessors, (40), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 23:59:58,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 524 transitions. [2024-11-13 23:59:58,856 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 524 transitions. Word has length 160 [2024-11-13 23:59:58,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:59:58,856 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 524 transitions. [2024-11-13 23:59:58,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 58 states have (on average 3.3448275862068964) internal successors, (194), 60 states have internal predecessors, (194), 21 states have call successors, (52), 13 states have call predecessors, (52), 21 states have return successors, (52), 18 states have call predecessors, (52), 21 states have call successors, (52) [2024-11-13 23:59:58,857 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 524 transitions. [2024-11-13 23:59:58,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 23:59:58,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:59:58,859 INFO L215 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, 1] [2024-11-13 23:59:58,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-13 23:59:59,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-13 23:59:59,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-13 23:59:59,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-13 23:59:59,463 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:59:59,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:59:59,464 INFO L85 PathProgramCache]: Analyzing trace with hash -661325713, now seen corresponding path program 1 times [2024-11-13 23:59:59,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:59:59,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307328654] [2024-11-13 23:59:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:59:59,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:59:59,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:59:59,468 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:59:59,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd70317-e393-4389-ae05-19319158cdf4/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-14 00:00:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:00:00,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-14 00:00:00,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:00:00,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 00:00:01,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-14 00:00:02,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:00:02,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-14 00:00:03,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:00:03,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 56 [2024-11-14 00:00:04,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:00:04,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-11-14 00:00:04,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 39 [2024-11-14 00:00:06,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:00:06,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 62 [2024-11-14 00:00:06,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55 [2024-11-14 00:00:06,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55 [2024-11-14 00:00:06,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55