./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c4345916100262b1cd0b4113b1b59f756ce5dadf9baff813b439bdf5b914ae7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:53:12,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:53:12,501 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:53:12,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:53:12,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:53:12,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:53:12,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:53:12,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:53:12,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:53:12,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:53:12,530 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:53:12,531 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:53:12,531 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:53:12,532 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:53:12,532 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:53:12,533 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:53:12,534 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:53:12,534 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:53:12,534 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:53:12,535 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:53:12,535 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:53:12,536 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:53:12,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:53:12,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:53:12,538 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:53:12,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:53:12,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:53:12,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:53:12,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:53:12,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:53:12,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:53:12,540 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:53:12,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:53:12,541 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:53:12,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:53:12,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:53:12,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:53:12,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:53:12,542 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:53:12,542 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:53:12,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:53:12,543 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:53:12,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:53:12,543 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:53:12,543 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:53:12,543 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:53:12,544 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:53:12,544 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c4345916100262b1cd0b4113b1b59f756ce5dadf9baff813b439bdf5b914ae7 [2023-12-02 15:53:12,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:53:12,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:53:12,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:53:12,767 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:53:12,768 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:53:12,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i [2023-12-02 15:53:15,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:53:15,698 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:53:15,699 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i [2023-12-02 15:53:15,709 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/data/570c85510/678fca05e0a74c18afd386644d2ddc7c/FLAG36dfd9dbc [2023-12-02 15:53:15,724 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/data/570c85510/678fca05e0a74c18afd386644d2ddc7c [2023-12-02 15:53:15,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:53:15,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:53:15,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:53:15,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:53:15,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:53:15,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:53:15" (1/1) ... [2023-12-02 15:53:15,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5a0172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:15, skipping insertion in model container [2023-12-02 15:53:15,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:53:15" (1/1) ... [2023-12-02 15:53:15,767 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:53:15,917 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i[917,930] [2023-12-02 15:53:15,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:53:15,984 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:53:15,996 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i[917,930] [2023-12-02 15:53:16,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:53:16,050 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:53:16,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16 WrapperNode [2023-12-02 15:53:16,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:53:16,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:53:16,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:53:16,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:53:16,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,110 INFO L138 Inliner]: procedures = 29, calls = 127, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 366 [2023-12-02 15:53:16,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:53:16,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:53:16,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:53:16,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:53:16,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:53:16,156 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:53:16,156 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:53:16,156 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:53:16,157 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (1/1) ... [2023-12-02 15:53:16,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:53:16,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:53:16,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:53:16,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:53:16,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:53:16,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 15:53:16,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:53:16,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 15:53:16,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:53:16,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 15:53:16,236 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:53:16,236 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:53:16,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:53:16,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:53:16,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:53:16,349 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:53:16,352 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:53:16,789 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:53:17,270 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:53:17,270 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:53:17,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:53:17 BoogieIcfgContainer [2023-12-02 15:53:17,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:53:17,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:53:17,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:53:17,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:53:17,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:53:15" (1/3) ... [2023-12-02 15:53:17,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f86a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:53:17, skipping insertion in model container [2023-12-02 15:53:17,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:16" (2/3) ... [2023-12-02 15:53:17,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f86a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:53:17, skipping insertion in model container [2023-12-02 15:53:17,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:53:17" (3/3) ... [2023-12-02 15:53:17,280 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-46.i [2023-12-02 15:53:17,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:53:17,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:53:17,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:53:17,341 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e210003, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:53:17,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:53:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 15:53:17,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 15:53:17,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:53:17,353 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:53:17,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:53:17,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:53:17,358 INFO L85 PathProgramCache]: Analyzing trace with hash -889481343, now seen corresponding path program 1 times [2023-12-02 15:53:17,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:53:17,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068021495] [2023-12-02 15:53:17,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:17,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:53:17,541 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:53:17,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416997253] [2023-12-02 15:53:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:17,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:53:17,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:53:17,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:53:17,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:53:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:53:18,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:53:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:53:18,736 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:53:18,738 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:53:18,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:53:18,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:53:18,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 15:53:18,946 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:53:18,950 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:53:19,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated [2023-12-02 15:53:19,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short32 could not be translated [2023-12-02 15:53:19,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-12-02 15:53:19,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-12-02 15:53:19,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated [2023-12-02 15:53:19,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-12-02 15:53:19,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-12-02 15:53:19,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short32 could not be translated [2023-12-02 15:53:19,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-12-02 15:53:19,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-12-02 15:53:19,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-12-02 15:53:19,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated [2023-12-02 15:53:19,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated [2023-12-02 15:53:19,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-12-02 15:53:19,011 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 15:53:19,012 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 15:53:19,013 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-12-02 15:53:19,014 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-12-02 15:53:19,015 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-12-02 15:53:19,016 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-12-02 15:53:19,016 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-12-02 15:53:19,017 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-12-02 15:53:19,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-12-02 15:53:19,019 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-12-02 15:53:19,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-12-02 15:53:19,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-12-02 15:53:19,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-12-02 15:53:19,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-12-02 15:53:19,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 15:53:19,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 15:53:19,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 15:53:19,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 15:53:19,027 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 15:53:19,028 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 15:53:19,028 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 15:53:19,029 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 15:53:19,030 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 15:53:19,031 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 15:53:19,031 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 15:53:19,032 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 15:53:19,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:53:19 BoogieIcfgContainer [2023-12-02 15:53:19,051 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:53:19,052 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:53:19,052 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:53:19,052 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:53:19,052 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:53:17" (3/4) ... [2023-12-02 15:53:19,055 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:53:19,056 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:53:19,057 INFO L158 Benchmark]: Toolchain (without parser) took 3328.77ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 98.3MB in the beginning and 106.2MB in the end (delta: -7.9MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2023-12-02 15:53:19,057 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:53:19,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.58ms. Allocated memory is still 136.3MB. Free memory was 98.0MB in the beginning and 83.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 15:53:19,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.60ms. Allocated memory is still 136.3MB. Free memory was 83.6MB in the beginning and 80.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:53:19,059 INFO L158 Benchmark]: Boogie Preprocessor took 44.82ms. Allocated memory is still 136.3MB. Free memory was 80.2MB in the beginning and 77.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:53:19,060 INFO L158 Benchmark]: RCFGBuilder took 1115.68ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 77.7MB in the beginning and 103.9MB in the end (delta: -26.2MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2023-12-02 15:53:19,061 INFO L158 Benchmark]: TraceAbstraction took 1777.13ms. Allocated memory is still 165.7MB. Free memory was 103.9MB in the beginning and 106.2MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:53:19,061 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 165.7MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:53:19,064 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.58ms. Allocated memory is still 136.3MB. Free memory was 98.0MB in the beginning and 83.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.60ms. Allocated memory is still 136.3MB. Free memory was 83.6MB in the beginning and 80.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.82ms. Allocated memory is still 136.3MB. Free memory was 80.2MB in the beginning and 77.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1115.68ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 77.7MB in the beginning and 103.9MB in the end (delta: -26.2MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1777.13ms. Allocated memory is still 165.7MB. Free memory was 103.9MB in the beginning and 106.2MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 165.7MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 72, overapproximation of bitwiseOr at line 90. Possible FailurePath: [L35] unsigned char isInitial = 0; [L36-L48] struct WrapperStruct00 WrapperStruct00 = { 1, 31.75, -8, 0, 0, 1, 1, -4, 32, -25, 4 }; [L49] unsigned char* WrapperStruct00_var_1_1_Pointer = &(WrapperStruct00.var_1_1); [L50] double* WrapperStruct00_var_1_2_Pointer = &(WrapperStruct00.var_1_2); [L51] signed char* WrapperStruct00_var_1_4_Pointer = &(WrapperStruct00.var_1_4); [L52] unsigned char* WrapperStruct00_var_1_6_Pointer = &(WrapperStruct00.var_1_6); [L53] unsigned char* WrapperStruct00_var_1_7_Pointer = &(WrapperStruct00.var_1_7); [L54] unsigned char* WrapperStruct00_var_1_8_Pointer = &(WrapperStruct00.var_1_8); [L55] unsigned char* WrapperStruct00_var_1_9_Pointer = &(WrapperStruct00.var_1_9); [L56] signed short int* WrapperStruct00_var_1_10_Pointer = &(WrapperStruct00.var_1_10); [L57] signed short int* WrapperStruct00_var_1_12_Pointer = &(WrapperStruct00.var_1_12); [L58] signed char* WrapperStruct00_var_1_13_Pointer = &(WrapperStruct00.var_1_13); [L59] signed char* WrapperStruct00_var_1_16_Pointer = &(WrapperStruct00.var_1_16); [L60] unsigned char last_1_WrapperStruct00_var_1_1 = 1; [L61] signed short int last_1_WrapperStruct00_var_1_10 = -4; [L131] isInitial = 1 [L132] FCALL initially() [L133] COND TRUE 1 [L134] CALL updateLastVariables() [L123] EXPR WrapperStruct00.var_1_1 [L123] last_1_WrapperStruct00_var_1_1 = WrapperStruct00.var_1_1 [L124] EXPR WrapperStruct00.var_1_10 [L124] last_1_WrapperStruct00_var_1_10 = WrapperStruct00.var_1_10 [L134] RET updateLastVariables() [L135] CALL updateVariables() [L100] WrapperStruct00.var_1_2 = __VERIFIER_nondet_double() [L101] EXPR WrapperStruct00.var_1_2 [L101] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F [L101] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) [L101] EXPR WrapperStruct00.var_1_2 [L101] EXPR WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F [L101] EXPR WrapperStruct00.var_1_2 [L101] EXPR WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F [L101] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L101] CALL assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L102] WrapperStruct00.var_1_4 = __VERIFIER_nondet_char() [L103] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= -128) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= -128) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L104] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L105] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_4 != 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(WrapperStruct00.var_1_4 != 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L106] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L107] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L108] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L109] WrapperStruct00.var_1_7 = __VERIFIER_nondet_uchar() [L110] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L111] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L112] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L113] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L114] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L115] WrapperStruct00.var_1_12 = __VERIFIER_nondet_short() [L116] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L116] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L117] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L117] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 32766) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 32766) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L118] WrapperStruct00.var_1_16 = __VERIFIER_nondet_char() [L119] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L119] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= -127) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= -127) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L120] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L120] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 126) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 126) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L135] RET updateVariables() [L136] CALL step() [L65] EXPR \read(*WrapperStruct00_var_1_12_Pointer) [L65] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L65] COND FALSE !(last_1_WrapperStruct00_var_1_10 <= ((*(WrapperStruct00_var_1_12_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer)))) [L70] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L70] EXPR \read(*WrapperStruct00_var_1_13_Pointer) [L70] EXPR (((*(WrapperStruct00_var_1_4_Pointer))) < ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_4_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))) [L70] EXPR \read(*WrapperStruct00_var_1_13_Pointer) [L70] EXPR (((*(WrapperStruct00_var_1_4_Pointer))) < ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_4_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))) [L70] signed long int stepLocal_1 = ((((*(WrapperStruct00_var_1_4_Pointer))) < ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_4_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer)))); [L71] EXPR \read(*WrapperStruct00_var_1_13_Pointer) [L71] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L71] signed long int stepLocal_0 = (*(WrapperStruct00_var_1_13_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer)); [L72] EXPR \read(*WrapperStruct00_var_1_2_Pointer) [L72] COND TRUE (- (*(WrapperStruct00_var_1_2_Pointer))) >= 16.75 [L73] EXPR \read(*WrapperStruct00_var_1_13_Pointer) [L73] COND TRUE stepLocal_0 >= (*(WrapperStruct00_var_1_13_Pointer)) [L74] COND TRUE stepLocal_1 > -32 [L75] (*(WrapperStruct00_var_1_1_Pointer)) = 0 [L89] EXPR \read(*WrapperStruct00_var_1_13_Pointer) [L89] signed char stepLocal_2 = (*(WrapperStruct00_var_1_13_Pointer)); [L90] EXPR \read(*WrapperStruct00_var_1_13_Pointer) [L90] EXPR \read(*WrapperStruct00_var_1_13_Pointer) [L90] EXPR (*(WrapperStruct00_var_1_13_Pointer)) | (*(WrapperStruct00_var_1_13_Pointer)) [L90] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L90] COND TRUE (((*(WrapperStruct00_var_1_13_Pointer)) | (*(WrapperStruct00_var_1_13_Pointer))) + (*(WrapperStruct00_var_1_4_Pointer))) < stepLocal_2 [L91] EXPR \read(*WrapperStruct00_var_1_12_Pointer) [L91] (*(WrapperStruct00_var_1_10_Pointer)) = ((*(WrapperStruct00_var_1_12_Pointer)) - 256) [L95] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L95] COND FALSE !(1 == (*(WrapperStruct00_var_1_4_Pointer))) [L136] RET step() [L137] CALL, EXPR property() [L127] EXPR \read(*WrapperStruct00_var_1_2_Pointer) [L127] EXPR ((- (*(WrapperStruct00_var_1_2_Pointer))) >= 16.75) ? ((((*(WrapperStruct00_var_1_13_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer))) >= (*(WrapperStruct00_var_1_13_Pointer))) ? (((((((*(WrapperStruct00_var_1_4_Pointer))) < ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_4_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))) > -32) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 0)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) ((*(WrapperStruct00_var_1_6_Pointer)) || (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_6_Pointer)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1)) [L127] EXPR \read(*WrapperStruct00_var_1_1_Pointer) [L127] EXPR ((- (*(WrapperStruct00_var_1_2_Pointer))) >= 16.75) ? ((((*(WrapperStruct00_var_1_13_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer))) >= (*(WrapperStruct00_var_1_13_Pointer))) ? (((((((*(WrapperStruct00_var_1_4_Pointer))) < ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_4_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))) > -32) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 0)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) ((*(WrapperStruct00_var_1_6_Pointer)) || (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_6_Pointer)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1)) [L127] EXPR (((- (*(WrapperStruct00_var_1_2_Pointer))) >= 16.75) ? ((((*(WrapperStruct00_var_1_13_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer))) >= (*(WrapperStruct00_var_1_13_Pointer))) ? (((((((*(WrapperStruct00_var_1_4_Pointer))) < ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_4_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))) > -32) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 0)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) ((*(WrapperStruct00_var_1_6_Pointer)) || (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_6_Pointer)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1))) && ((1 == (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_8_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_9_Pointer)))) : 1) [L127] EXPR ((((- (*(WrapperStruct00_var_1_2_Pointer))) >= 16.75) ? ((((*(WrapperStruct00_var_1_13_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer))) >= (*(WrapperStruct00_var_1_13_Pointer))) ? (((((((*(WrapperStruct00_var_1_4_Pointer))) < ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_4_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))) > -32) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 0)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) ((*(WrapperStruct00_var_1_6_Pointer)) || (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_6_Pointer)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1))) && ((1 == (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_8_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_9_Pointer)))) : 1)) && (((((*(WrapperStruct00_var_1_13_Pointer)) | (*(WrapperStruct00_var_1_13_Pointer))) + (*(WrapperStruct00_var_1_4_Pointer))) < (*(WrapperStruct00_var_1_13_Pointer))) ? ((*(WrapperStruct00_var_1_10_Pointer)) == ((signed short int) ((*(WrapperStruct00_var_1_12_Pointer)) - 256))) : ((*(WrapperStruct00_var_1_10_Pointer)) == ((signed short int) 128))) [L127] EXPR (((((- (*(WrapperStruct00_var_1_2_Pointer))) >= 16.75) ? ((((*(WrapperStruct00_var_1_13_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer))) >= (*(WrapperStruct00_var_1_13_Pointer))) ? (((((((*(WrapperStruct00_var_1_4_Pointer))) < ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_4_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))) > -32) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 0)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) ((*(WrapperStruct00_var_1_6_Pointer)) || (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_6_Pointer)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1))) && ((1 == (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_8_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_9_Pointer)))) : 1)) && (((((*(WrapperStruct00_var_1_13_Pointer)) | (*(WrapperStruct00_var_1_13_Pointer))) + (*(WrapperStruct00_var_1_4_Pointer))) < (*(WrapperStruct00_var_1_13_Pointer))) ? ((*(WrapperStruct00_var_1_10_Pointer)) == ((signed short int) ((*(WrapperStruct00_var_1_12_Pointer)) - 256))) : ((*(WrapperStruct00_var_1_10_Pointer)) == ((signed short int) 128)))) && ((last_1_WrapperStruct00_var_1_10 <= ((*(WrapperStruct00_var_1_12_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer)))) ? (last_1_WrapperStruct00_var_1_1 ? ((*(WrapperStruct00_var_1_13_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_16_Pointer)))) : 1) : 1) [L127-L128] return (((((- (*(WrapperStruct00_var_1_2_Pointer))) >= 16.75) ? ((((*(WrapperStruct00_var_1_13_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer))) >= (*(WrapperStruct00_var_1_13_Pointer))) ? (((((((*(WrapperStruct00_var_1_4_Pointer))) < ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_4_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))) > -32) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 0)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) ((*(WrapperStruct00_var_1_6_Pointer)) || (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_6_Pointer)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1)) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_7_Pointer)))))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned char) 1))) && ((1 == (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_8_Pointer)) == ((unsigned char) (*(WrapperStruct00_var_1_9_Pointer)))) : 1)) && (((((*(WrapperStruct00_var_1_13_Pointer)) | (*(WrapperStruct00_var_1_13_Pointer))) + (*(WrapperStruct00_var_1_4_Pointer))) < (*(WrapperStruct00_var_1_13_Pointer))) ? ((*(WrapperStruct00_var_1_10_Pointer)) == ((signed short int) ((*(WrapperStruct00_var_1_12_Pointer)) - 256))) : ((*(WrapperStruct00_var_1_10_Pointer)) == ((signed short int) 128)))) && ((last_1_WrapperStruct00_var_1_10 <= ((*(WrapperStruct00_var_1_12_Pointer)) / (*(WrapperStruct00_var_1_4_Pointer)))) ? (last_1_WrapperStruct00_var_1_1 ? ((*(WrapperStruct00_var_1_13_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_16_Pointer)))) : 1) : 1) ; [L137] RET, EXPR property() [L137] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:14}, WrapperStruct00_var_1_12_Pointer={4:16}, WrapperStruct00_var_1_13_Pointer={4:18}, WrapperStruct00_var_1_16_Pointer={4:19}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:1}, WrapperStruct00_var_1_4_Pointer={4:9}, WrapperStruct00_var_1_6_Pointer={4:10}, WrapperStruct00_var_1_7_Pointer={4:11}, WrapperStruct00_var_1_8_Pointer={4:12}, WrapperStruct00_var_1_9_Pointer={4:13}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_10=-4, last_1_WrapperStruct00_var_1_1=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 15:53:19,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c4345916100262b1cd0b4113b1b59f756ce5dadf9baff813b439bdf5b914ae7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:53:21,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:53:21,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 15:53:21,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:53:21,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:53:21,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:53:21,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:53:21,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:53:21,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:53:21,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:53:21,191 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:53:21,192 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:53:21,192 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:53:21,193 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:53:21,193 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:53:21,194 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:53:21,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:53:21,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:53:21,196 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:53:21,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:53:21,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:53:21,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:53:21,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:53:21,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:53:21,199 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:53:21,199 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:53:21,200 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:53:21,200 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:53:21,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:53:21,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:53:21,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:53:21,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:53:21,202 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:53:21,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:53:21,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:53:21,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:53:21,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:53:21,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:53:21,204 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:53:21,204 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:53:21,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:53:21,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:53:21,205 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:53:21,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:53:21,205 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c4345916100262b1cd0b4113b1b59f756ce5dadf9baff813b439bdf5b914ae7 [2023-12-02 15:53:21,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:53:21,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:53:21,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:53:21,533 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:53:21,534 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:53:21,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i [2023-12-02 15:53:24,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:53:24,600 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:53:24,600 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i [2023-12-02 15:53:24,610 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/data/cadf006bd/8bae7733ae0f4642bd2c6514b9dd0b23/FLAG91dc1b794 [2023-12-02 15:53:24,622 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/data/cadf006bd/8bae7733ae0f4642bd2c6514b9dd0b23 [2023-12-02 15:53:24,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:53:24,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:53:24,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:53:24,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:53:24,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:53:24,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:24,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b687dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24, skipping insertion in model container [2023-12-02 15:53:24,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:24,666 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:53:24,806 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i[917,930] [2023-12-02 15:53:24,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:53:24,877 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:53:24,888 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-46.i[917,930] [2023-12-02 15:53:24,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:53:24,944 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:53:24,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24 WrapperNode [2023-12-02 15:53:24,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:53:24,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:53:24,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:53:24,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:53:24,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:24,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,000 INFO L138 Inliner]: procedures = 33, calls = 127, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 342 [2023-12-02 15:53:25,000 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:53:25,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:53:25,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:53:25,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:53:25,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,050 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:53:25,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:53:25,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:53:25,058 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:53:25,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (1/1) ... [2023-12-02 15:53:25,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:53:25,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:53:25,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:53:25,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:53:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:53:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-12-02 15:53:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-12-02 15:53:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 15:53:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 15:53:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:53:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-12-02 15:53:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 15:53:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:53:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:53:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:53:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:53:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 15:53:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 15:53:25,246 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:53:25,248 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:53:25,885 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:53:25,931 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:53:25,931 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:53:25,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:53:25 BoogieIcfgContainer [2023-12-02 15:53:25,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:53:25,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:53:25,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:53:25,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:53:25,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:53:24" (1/3) ... [2023-12-02 15:53:25,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1568d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:53:25, skipping insertion in model container [2023-12-02 15:53:25,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:53:24" (2/3) ... [2023-12-02 15:53:25,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1568d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:53:25, skipping insertion in model container [2023-12-02 15:53:25,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:53:25" (3/3) ... [2023-12-02 15:53:25,942 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-46.i [2023-12-02 15:53:25,958 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:53:25,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:53:26,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:53:26,006 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@729d77ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:53:26,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:53:26,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 70 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 15:53:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 15:53:26,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:53:26,026 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:53:26,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:53:26,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:53:26,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1060869837, now seen corresponding path program 1 times [2023-12-02 15:53:26,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:53:26,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518020475] [2023-12-02 15:53:26,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:26,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:53:26,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:53:26,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:53:26,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 15:53:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:53:26,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 15:53:26,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:53:26,402 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-12-02 15:53:26,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:53:26,404 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:53:26,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518020475] [2023-12-02 15:53:26,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518020475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:53:26,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:53:26,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:53:26,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855569846] [2023-12-02 15:53:26,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:53:26,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:53:26,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:53:26,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:53:26,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:53:26,445 INFO L87 Difference]: Start difference. First operand has 86 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 70 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 15:53:26,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:53:26,501 INFO L93 Difference]: Finished difference Result 169 states and 268 transitions. [2023-12-02 15:53:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:53:26,504 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2023-12-02 15:53:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:53:26,512 INFO L225 Difference]: With dead ends: 169 [2023-12-02 15:53:26,513 INFO L226 Difference]: Without dead ends: 84 [2023-12-02 15:53:26,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:53:26,520 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:53:26,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:53:26,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-02 15:53:26,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-02 15:53:26,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 68 states have internal predecessors, (95), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 15:53:26,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2023-12-02 15:53:26,568 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 109 [2023-12-02 15:53:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:53:26,568 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2023-12-02 15:53:26,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 15:53:26,569 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2023-12-02 15:53:26,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 15:53:26,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:53:26,573 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:53:26,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:53:26,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:53:26,774 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:53:26,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:53:26,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1043006953, now seen corresponding path program 1 times [2023-12-02 15:53:26,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:53:26,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277778834] [2023-12-02 15:53:26,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:26,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:53:26,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:53:26,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:53:26,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 15:53:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:53:27,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 15:53:27,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:53:28,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 15:53:28,409 INFO L349 Elim1Store]: treesize reduction 35, result has 30.0 percent of original size [2023-12-02 15:53:28,410 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 2 case distinctions, treesize of input 30 treesize of output 40 [2023-12-02 15:53:28,531 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:53:28,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 34 [2023-12-02 15:53:28,566 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 15:53:28,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:53:28,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:53:28,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277778834] [2023-12-02 15:53:28,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277778834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:53:28,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:53:28,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 15:53:28,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85624469] [2023-12-02 15:53:28,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:53:28,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:53:28,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:53:28,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:53:28,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:53:28,572 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:53:29,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:53:29,605 INFO L93 Difference]: Finished difference Result 217 states and 317 transitions. [2023-12-02 15:53:29,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 15:53:29,606 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2023-12-02 15:53:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:53:29,609 INFO L225 Difference]: With dead ends: 217 [2023-12-02 15:53:29,609 INFO L226 Difference]: Without dead ends: 134 [2023-12-02 15:53:29,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-02 15:53:29,612 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 249 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 15:53:29,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 392 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 15:53:29,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-12-02 15:53:29,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 92. [2023-12-02 15:53:29,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 76 states have (on average 1.394736842105263) internal successors, (106), 76 states have internal predecessors, (106), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 15:53:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2023-12-02 15:53:29,631 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 109 [2023-12-02 15:53:29,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:53:29,633 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2023-12-02 15:53:29,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:53:29,634 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2023-12-02 15:53:29,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 15:53:29,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:53:29,637 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:53:29,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 15:53:29,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:53:29,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:53:29,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:53:29,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1301172391, now seen corresponding path program 1 times [2023-12-02 15:53:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:53:29,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851388542] [2023-12-02 15:53:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:29,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:53:29,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:53:29,844 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:53:29,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 15:53:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:53:30,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 15:53:30,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:53:30,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2023-12-02 15:53:33,172 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 37 treesize of output 42 [2023-12-02 15:53:34,491 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 45 treesize of output 53 [2023-12-02 15:53:35,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 56 [2023-12-02 15:53:36,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 56 [2023-12-02 15:53:37,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 64 [2023-12-02 15:53:37,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 61 treesize of output 75 [2023-12-02 15:53:39,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 85 [2023-12-02 15:53:39,567 INFO L349 Elim1Store]: treesize reduction 107, result has 12.3 percent of original size [2023-12-02 15:53:39,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 78 treesize of output 106 [2023-12-02 15:53:39,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:53:39,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 78 treesize of output 42 [2023-12-02 15:53:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 188 proven. 96 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-02 15:53:39,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:53:51,622 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:53:51,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851388542] [2023-12-02 15:53:51,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851388542] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:53:51,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2084609881] [2023-12-02 15:53:51,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:53:51,623 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:53:51,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:53:51,625 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:53:51,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 15:53:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:53:52,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 15:53:52,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:53:56,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 15:53:56,537 INFO L349 Elim1Store]: treesize reduction 27, result has 28.9 percent of original size [2023-12-02 15:53:56,538 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 2 case distinctions, treesize of input 30 treesize of output 36 [2023-12-02 15:53:56,818 INFO L349 Elim1Store]: treesize reduction 43, result has 25.9 percent of original size [2023-12-02 15:53:56,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2023-12-02 15:53:57,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2023-12-02 15:53:57,216 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 15:53:57,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:53:57,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2084609881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:53:57,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:53:57,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 18 [2023-12-02 15:53:57,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663248157] [2023-12-02 15:53:57,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:53:57,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 15:53:57,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:53:57,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 15:53:57,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=514, Unknown=6, NotChecked=0, Total=600 [2023-12-02 15:53:57,220 INFO L87 Difference]: Start difference. First operand 92 states and 134 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:54:00,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:54:00,030 INFO L93 Difference]: Finished difference Result 271 states and 393 transitions. [2023-12-02 15:54:00,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 15:54:00,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2023-12-02 15:54:00,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:54:00,033 INFO L225 Difference]: With dead ends: 271 [2023-12-02 15:54:00,034 INFO L226 Difference]: Without dead ends: 180 [2023-12-02 15:54:00,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=159, Invalid=957, Unknown=6, NotChecked=0, Total=1122 [2023-12-02 15:54:00,036 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 334 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 15:54:00,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 451 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 15:54:00,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-02 15:54:00,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 92. [2023-12-02 15:54:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 76 states have (on average 1.394736842105263) internal successors, (106), 76 states have internal predecessors, (106), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 15:54:00,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2023-12-02 15:54:00,055 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 109 [2023-12-02 15:54:00,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:54:00,056 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2023-12-02 15:54:00,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:54:00,056 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2023-12-02 15:54:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 15:54:00,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:54:00,059 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:54:00,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 15:54:00,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 15:54:00,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 15:54:00,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:54:00,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:54:00,461 INFO L85 PathProgramCache]: Analyzing trace with hash -588580388, now seen corresponding path program 1 times [2023-12-02 15:54:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:54:00,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505746398] [2023-12-02 15:54:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:54:00,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:54:00,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:54:00,463 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:54:00,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 15:54:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:54:00,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:54:00,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:54:00,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-02 15:54:01,173 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 15:54:01,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:54:01,173 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:54:01,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505746398] [2023-12-02 15:54:01,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505746398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:54:01,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:54:01,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:54:01,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423505345] [2023-12-02 15:54:01,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:54:01,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:54:01,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:54:01,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:54:01,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:54:01,176 INFO L87 Difference]: Start difference. First operand 92 states and 134 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:54:09,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:54:09,281 INFO L93 Difference]: Finished difference Result 241 states and 349 transitions. [2023-12-02 15:54:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:54:09,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-12-02 15:54:09,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:54:09,284 INFO L225 Difference]: With dead ends: 241 [2023-12-02 15:54:09,284 INFO L226 Difference]: Without dead ends: 150 [2023-12-02 15:54:09,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:54:09,286 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 88 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:54:09,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 348 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-12-02 15:54:09,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-02 15:54:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 110. [2023-12-02 15:54:09,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 94 states have (on average 1.4042553191489362) internal successors, (132), 94 states have internal predecessors, (132), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 15:54:09,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 160 transitions. [2023-12-02 15:54:09,301 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 160 transitions. Word has length 111 [2023-12-02 15:54:09,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:54:09,302 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 160 transitions. [2023-12-02 15:54:09,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:54:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 160 transitions. [2023-12-02 15:54:09,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 15:54:09,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:54:09,304 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:54:09,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 15:54:09,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:54:09,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:54:09,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:54:09,506 INFO L85 PathProgramCache]: Analyzing trace with hash 91477982, now seen corresponding path program 1 times [2023-12-02 15:54:09,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:54:09,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725529513] [2023-12-02 15:54:09,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:54:09,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:54:09,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:54:09,508 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:54:09,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 15:54:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:54:09,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:54:09,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:54:09,748 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 15:54:09,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:54:09,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:54:09,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725529513] [2023-12-02 15:54:09,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725529513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:54:09,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:54:09,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:54:09,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170811344] [2023-12-02 15:54:09,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:54:09,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:54:09,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:54:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:54:09,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:54:09,750 INFO L87 Difference]: Start difference. First operand 110 states and 160 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:54:09,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:54:09,891 INFO L93 Difference]: Finished difference Result 231 states and 336 transitions. [2023-12-02 15:54:09,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:54:09,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-12-02 15:54:09,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:54:09,893 INFO L225 Difference]: With dead ends: 231 [2023-12-02 15:54:09,893 INFO L226 Difference]: Without dead ends: 122 [2023-12-02 15:54:09,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:54:09,895 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 36 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:54:09,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 469 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:54:09,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-12-02 15:54:09,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2023-12-02 15:54:09,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 15:54:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 163 transitions. [2023-12-02 15:54:09,909 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 163 transitions. Word has length 111 [2023-12-02 15:54:09,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:54:09,910 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 163 transitions. [2023-12-02 15:54:09,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:54:09,910 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 163 transitions. [2023-12-02 15:54:09,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 15:54:09,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:54:09,912 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:54:09,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-02 15:54:10,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:54:10,113 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:54:10,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:54:10,113 INFO L85 PathProgramCache]: Analyzing trace with hash 422536862, now seen corresponding path program 1 times [2023-12-02 15:54:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:54:10,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962765997] [2023-12-02 15:54:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:54:10,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:54:10,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:54:10,115 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:54:10,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 15:54:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:54:10,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 15:54:10,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:54:10,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 12 [2023-12-02 15:54:11,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-02 15:54:12,422 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 23 [2023-12-02 15:54:13,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2023-12-02 15:54:14,277 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 40 treesize of output 34 [2023-12-02 15:54:15,268 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 37 treesize of output 42 [2023-12-02 15:54:16,409 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 48 treesize of output 45 [2023-12-02 15:54:17,867 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 63 treesize of output 52 [2023-12-02 15:54:18,129 INFO L349 Elim1Store]: treesize reduction 71, result has 17.4 percent of original size [2023-12-02 15:54:18,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 69 treesize of output 80 [2023-12-02 15:54:18,317 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:54:18,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 38 [2023-12-02 15:54:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 196 proven. 96 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-02 15:54:18,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:54:20,663 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_172 (_ BitVec 32)) (~WrapperStruct00_var_1_12_Pointer~0.base (_ BitVec 32)) (~WrapperStruct00_var_1_12_Pointer~0.offset (_ BitVec 32))) (not (= ((_ sign_extend 24) ((_ extract 7 0) (select (select (let ((.cse0 (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset v_ArrVal_172)))) (store .cse0 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv4294967040 32) ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse0 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset))))))))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset))) (_ bv1 32)))) is different from false [2023-12-02 15:54:21,048 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:54:21,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962765997] [2023-12-02 15:54:21,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962765997] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:54:21,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [924829900] [2023-12-02 15:54:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:54:21,049 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:54:21,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:54:21,050 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:54:21,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 15:54:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:54:22,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 15:54:22,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:54:22,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2023-12-02 15:54:25,877 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 37 treesize of output 42 [2023-12-02 15:54:27,847 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 45 treesize of output 53 [2023-12-02 15:54:29,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 56 [2023-12-02 15:54:30,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 64 [2023-12-02 15:54:32,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 64 treesize of output 67 [2023-12-02 15:54:33,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 64 treesize of output 67 [2023-12-02 15:54:36,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 79 treesize of output 74 [2023-12-02 15:54:36,712 INFO L349 Elim1Store]: treesize reduction 67, result has 14.1 percent of original size [2023-12-02 15:54:36,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 70 treesize of output 91 [2023-12-02 15:54:37,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 38 [2023-12-02 15:54:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 204 proven. 96 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 15:54:37,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:54:41,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [924829900] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:54:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546541465] [2023-12-02 15:54:41,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:54:41,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:54:41,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:54:41,032 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:54:41,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 15:54:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:54:41,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-02 15:54:41,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:54:44,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 15:54:46,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 18 [2023-12-02 15:54:47,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2023-12-02 15:54:48,895 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 [2023-12-02 15:54:49,321 INFO L349 Elim1Store]: treesize reduction 47, result has 24.2 percent of original size [2023-12-02 15:54:49,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 57 [2023-12-02 15:54:49,672 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 57 treesize of output 54 [2023-12-02 15:54:50,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:54:50,232 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 6 case distinctions, treesize of input 93 treesize of output 53 [2023-12-02 15:54:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 119 proven. 135 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-12-02 15:54:50,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:54:51,481 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 15:54:51,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546541465] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 15:54:51,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:54:51,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 12, 18] total 42 [2023-12-02 15:54:51,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101557243] [2023-12-02 15:54:51,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:54:51,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:54:51,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:54:51,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:54:51,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=2345, Unknown=3, NotChecked=98, Total=2652 [2023-12-02 15:54:51,485 INFO L87 Difference]: Start difference. First operand 113 states and 163 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:54:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:54:53,019 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2023-12-02 15:54:53,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 15:54:53,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-12-02 15:54:53,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:54:53,021 INFO L225 Difference]: With dead ends: 264 [2023-12-02 15:54:53,022 INFO L226 Difference]: Without dead ends: 152 [2023-12-02 15:54:53,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 437 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1172 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=246, Invalid=3061, Unknown=3, NotChecked=112, Total=3422 [2023-12-02 15:54:53,024 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 80 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:54:53,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 774 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 15:54:53,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-02 15:54:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 112. [2023-12-02 15:54:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 96 states have (on average 1.3958333333333333) internal successors, (134), 96 states have internal predecessors, (134), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 15:54:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 162 transitions. [2023-12-02 15:54:53,038 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 162 transitions. Word has length 111 [2023-12-02 15:54:53,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:54:53,038 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 162 transitions. [2023-12-02 15:54:53,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 15:54:53,039 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 162 transitions. [2023-12-02 15:54:53,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 15:54:53,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:54:53,040 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:54:53,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 15:54:53,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-02 15:54:53,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-02 15:54:53,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:54:53,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:54:53,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:54:53,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1143711948, now seen corresponding path program 1 times [2023-12-02 15:54:53,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:54:53,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555267392] [2023-12-02 15:54:53,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:54:53,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:54:53,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:54:53,644 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:54:53,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 15:54:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:54:53,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 15:54:53,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:54:54,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-12-02 15:54:54,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 15:54:55,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 15:54:55,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-02 15:54:56,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2023-12-02 15:54:57,297 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 37 treesize of output 42 [2023-12-02 15:54:58,168 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 48 treesize of output 45 [2023-12-02 15:54:59,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 90 treesize of output 77 [2023-12-02 15:54:59,949 INFO L349 Elim1Store]: treesize reduction 95, result has 13.6 percent of original size [2023-12-02 15:54:59,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 96 treesize of output 105 [2023-12-02 15:55:00,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:55:00,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 127 treesize of output 59 [2023-12-02 15:55:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 212 proven. 96 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-02 15:55:00,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:55:05,605 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:55:05,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555267392] [2023-12-02 15:55:05,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555267392] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:55:05,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1704448527] [2023-12-02 15:55:05,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:55:05,605 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:55:05,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:55:05,606 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:55:05,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 15:55:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:55:06,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 15:55:06,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:55:06,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-12-02 15:55:09,164 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 23 [2023-12-02 15:55:09,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2023-12-02 15:55:10,341 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 40 treesize of output 34 [2023-12-02 15:55:10,805 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 37 treesize of output 42 [2023-12-02 15:55:11,543 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 48 treesize of output 45 [2023-12-02 15:55:12,012 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 45 treesize of output 53 [2023-12-02 15:55:14,795 INFO L349 Elim1Store]: treesize reduction 3, result has 95.1 percent of original size [2023-12-02 15:55:14,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 81 treesize of output 98 [2023-12-02 15:55:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 96 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-02 15:55:15,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:55:19,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1704448527] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:55:19,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879810017] [2023-12-02 15:55:19,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:55:19,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:55:19,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:55:19,876 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:55:19,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 15:55:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:55:20,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 15:55:20,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:55:20,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2023-12-02 15:55:24,955 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 40 treesize of output 27 [2023-12-02 15:55:25,487 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 27 [2023-12-02 15:55:25,864 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 35 treesize of output 37 [2023-12-02 15:55:26,664 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 [2023-12-02 15:55:27,160 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 [2023-12-02 15:55:27,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:55:27,617 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 43 treesize of output 48 [2023-12-02 15:55:31,647 INFO L349 Elim1Store]: treesize reduction 3, result has 94.5 percent of original size [2023-12-02 15:55:31,648 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 79 treesize of output 88 [2023-12-02 15:55:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 144 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-02 15:55:32,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:55:32,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879810017] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:55:32,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:55:32,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 9] total 28 [2023-12-02 15:55:32,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110830148] [2023-12-02 15:55:32,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 15:55:32,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-02 15:55:32,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:55:32,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-02 15:55:32,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1433, Unknown=4, NotChecked=0, Total=1640 [2023-12-02 15:55:32,941 INFO L87 Difference]: Start difference. First operand 112 states and 162 transitions. Second operand has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 28 states have internal predecessors, (136), 13 states have call successors, (42), 13 states have call predecessors, (42), 13 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2023-12-02 15:56:05,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:07,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:24,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:26,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:35,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:37,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:40,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:42,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:49,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:51,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:55,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:56:58,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:57:00,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:57:02,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:57:04,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:57:06,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:57:08,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:57:39,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:57:41,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:57:42,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:57:42,846 INFO L93 Difference]: Finished difference Result 479 states and 687 transitions. [2023-12-02 15:57:42,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 15:57:42,847 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 28 states have internal predecessors, (136), 13 states have call successors, (42), 13 states have call predecessors, (42), 13 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 111 [2023-12-02 15:57:42,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:57:42,851 INFO L225 Difference]: With dead ends: 479 [2023-12-02 15:57:42,851 INFO L226 Difference]: Without dead ends: 368 [2023-12-02 15:57:42,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 362 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 36.6s TimeCoverageRelationStatistics Valid=573, Invalid=2392, Unknown=5, NotChecked=0, Total=2970 [2023-12-02 15:57:42,853 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1220 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 334 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:57:42,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 1188 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 1816 Invalid, 19 Unknown, 0 Unchecked, 116.0s Time] [2023-12-02 15:57:42,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-02 15:57:42,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 294. [2023-12-02 15:57:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 252 states have (on average 1.3849206349206349) internal successors, (349), 253 states have internal predecessors, (349), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-02 15:57:42,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 425 transitions. [2023-12-02 15:57:42,911 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 425 transitions. Word has length 111 [2023-12-02 15:57:42,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:57:42,911 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 425 transitions. [2023-12-02 15:57:42,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 28 states have internal predecessors, (136), 13 states have call successors, (42), 13 states have call predecessors, (42), 13 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2023-12-02 15:57:42,912 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 425 transitions. [2023-12-02 15:57:42,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 15:57:42,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:57:42,914 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:57:42,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 15:57:43,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-02 15:57:43,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 15:57:43,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:57:43,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:57:43,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:57:43,515 INFO L85 PathProgramCache]: Analyzing trace with hash -2145083344, now seen corresponding path program 1 times [2023-12-02 15:57:43,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:57:43,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250335343] [2023-12-02 15:57:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:57:43,516 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:57:43,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:57:43,517 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:57:43,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-02 15:57:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:57:43,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 15:57:43,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:57:44,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-12-02 15:57:47,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2023-12-02 15:57:49,549 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 40 treesize of output 34 [2023-12-02 15:57:50,997 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 37 treesize of output 42 [2023-12-02 15:57:52,823 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 48 treesize of output 45 [2023-12-02 15:57:54,350 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 48 treesize of output 45 [2023-12-02 15:57:55,893 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 48 treesize of output 45 [2023-12-02 15:57:58,314 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 60 treesize of output 60 [2023-12-02 15:57:58,731 INFO L349 Elim1Store]: treesize reduction 83, result has 15.3 percent of original size [2023-12-02 15:57:58,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 77 treesize of output 91 [2023-12-02 15:57:58,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:57:58,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 42 [2023-12-02 15:57:59,119 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 164 proven. 96 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-02 15:57:59,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:58:01,486 WARN L854 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_12_Pointer~0.base (_ BitVec 32)) (~WrapperStruct00_var_1_12_Pointer~0.offset (_ BitVec 32))) (not (= ((_ sign_extend 24) ((_ extract 7 0) (select (select (let ((.cse0 (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset ((_ sign_extend 24) (_ bv0 8)))))) (store .cse0 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv4294967040 32) ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse0 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset))))))))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset))) (_ bv1 32)))) is different from false [2023-12-02 15:58:02,046 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:58:02,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250335343] [2023-12-02 15:58:02,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250335343] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:58:02,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [987208424] [2023-12-02 15:58:02,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:58:02,046 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:58:02,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:58:02,047 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:58:02,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 15:58:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:58:02,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 15:58:02,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:58:05,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 12 [2023-12-02 15:58:06,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-02 15:58:13,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2023-12-02 15:58:19,111 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 40 treesize of output 34 [2023-12-02 15:58:20,646 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 37 treesize of output 42 [2023-12-02 15:58:26,925 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 45 treesize of output 53 [2023-12-02 15:58:33,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 64 [2023-12-02 15:58:37,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 85 treesize of output 87 [2023-12-02 15:58:38,042 INFO L349 Elim1Store]: treesize reduction 75, result has 12.8 percent of original size [2023-12-02 15:58:38,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 99 treesize of output 115 [2023-12-02 15:58:38,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 42 [2023-12-02 15:58:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 220 proven. 96 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-02 15:58:38,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:58:42,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [987208424] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:58:42,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818915601] [2023-12-02 15:58:42,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:58:42,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:58:42,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:58:42,382 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:58:42,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 15:58:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:58:42,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 15:58:42,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:58:43,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2023-12-02 15:59:04,835 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 [2023-12-02 15:59:07,462 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 45 treesize of output 50 [2023-12-02 15:59:16,016 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 55 treesize of output 63 [2023-12-02 15:59:18,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2023-12-02 15:59:21,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2023-12-02 15:59:23,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:59:23,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:59:23,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:59:23,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:59:23,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:59:23,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2023-12-02 15:59:29,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 82 treesize of output 90 [2023-12-02 15:59:33,097 INFO L349 Elim1Store]: treesize reduction 121, result has 12.3 percent of original size [2023-12-02 15:59:33,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 96 treesize of output 126 [2023-12-02 15:59:33,850 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 15:59:33,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 96 treesize of output 46 [2023-12-02 15:59:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 176 proven. 96 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-02 15:59:34,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:59:34,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818915601] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:59:34,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:59:34,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 11] total 32 [2023-12-02 15:59:34,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836430729] [2023-12-02 15:59:34,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 15:59:34,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 15:59:34,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:59:34,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 15:59:34,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1542, Unknown=25, NotChecked=82, Total=1892 [2023-12-02 15:59:34,865 INFO L87 Difference]: Start difference. First operand 294 states and 425 transitions. Second operand has 33 states, 33 states have (on average 4.303030303030303) internal successors, (142), 32 states have internal predecessors, (142), 14 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42) [2023-12-02 16:00:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:00:03,645 INFO L93 Difference]: Finished difference Result 598 states and 852 transitions. [2023-12-02 16:00:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 16:00:03,646 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.303030303030303) internal successors, (142), 32 states have internal predecessors, (142), 14 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42) Word has length 111 [2023-12-02 16:00:03,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:00:03,650 INFO L225 Difference]: With dead ends: 598 [2023-12-02 16:00:03,650 INFO L226 Difference]: Without dead ends: 403 [2023-12-02 16:00:03,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 359 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 71.7s TimeCoverageRelationStatistics Valid=582, Invalid=2153, Unknown=25, NotChecked=102, Total=2862 [2023-12-02 16:00:03,652 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 1310 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 2466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:00:03,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 1779 Invalid, 2466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2023-12-02 16:00:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-12-02 16:00:03,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 350. [2023-12-02 16:00:03,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 306 states have (on average 1.3823529411764706) internal successors, (423), 308 states have internal predecessors, (423), 39 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-02 16:00:03,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 501 transitions. [2023-12-02 16:00:03,723 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 501 transitions. Word has length 111 [2023-12-02 16:00:03,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:00:03,723 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 501 transitions. [2023-12-02 16:00:03,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.303030303030303) internal successors, (142), 32 states have internal predecessors, (142), 14 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42) [2023-12-02 16:00:03,724 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 501 transitions. [2023-12-02 16:00:03,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:00:03,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:00:03,726 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:00:03,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-02 16:00:03,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 16:00:04,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 16:00:04,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:00:04,327 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:00:04,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:00:04,328 INFO L85 PathProgramCache]: Analyzing trace with hash 67898060, now seen corresponding path program 1 times [2023-12-02 16:00:04,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:00:04,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390620126] [2023-12-02 16:00:04,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:04,328 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:00:04,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:00:04,329 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:00:04,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-02 16:00:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:04,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 16:00:04,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:00:04,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 12 [2023-12-02 16:00:05,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:00:07,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:00:08,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:00:09,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:00:11,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:00:12,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-02 16:00:14,064 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 23 [2023-12-02 16:00:14,519 INFO L349 Elim1Store]: treesize reduction 59, result has 20.3 percent of original size [2023-12-02 16:00:14,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 69 treesize of output 73 [2023-12-02 16:00:14,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:00:14,708 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 6 case distinctions, treesize of input 60 treesize of output 40 [2023-12-02 16:00:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-02 16:00:14,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:00:24,163 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:00:24,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390620126] [2023-12-02 16:00:24,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390620126] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:00:24,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1019248562] [2023-12-02 16:00:24,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:00:24,164 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:00:24,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:00:24,165 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:00:24,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 16:00:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:00:25,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 16:00:25,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:00:25,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:00:26,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:00:28,586 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 15 treesize of output 1 [2023-12-02 16:00:29,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:00:31,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:00:32,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:00:34,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2023-12-02 16:00:49,445 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 71 proven. 99 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-12-02 16:00:49,445 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:01:09,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1019248562] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:01:09,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269897011] [2023-12-02 16:01:09,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:01:09,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:01:09,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:01:09,833 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:01:09,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 16:01:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:01:10,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 16:01:10,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:01:10,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2023-12-02 16:01:17,189 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 [2023-12-02 16:01:19,973 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 45 treesize of output 50 [2023-12-02 16:01:22,782 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 60 treesize of output 53 [2023-12-02 16:01:24,659 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 55 treesize of output 63 [2023-12-02 16:01:27,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2023-12-02 16:01:30,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:30,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:30,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:30,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:30,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:30,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2023-12-02 16:01:35,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:35,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:35,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:35,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:35,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:01:35,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2023-12-02 16:01:57,126 WARN L293 SmtUtils]: Spent 16.25s on a formula simplification. DAG size of input: 65 DAG size of output: 24 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 16:01:57,126 INFO L349 Elim1Store]: treesize reduction 92, result has 25.8 percent of original size [2023-12-02 16:01:57,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 111 treesize of output 134 [2023-12-02 16:01:58,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:01:58,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 96 treesize of output 52 [2023-12-02 16:01:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 96 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-02 16:01:58,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:02:06,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269897011] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:02:06,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:02:06,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 14, 10] total 28 [2023-12-02 16:02:06,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596687624] [2023-12-02 16:02:06,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:02:06,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-02 16:02:06,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:02:06,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-02 16:02:06,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1492, Unknown=7, NotChecked=0, Total=1806 [2023-12-02 16:02:06,390 INFO L87 Difference]: Start difference. First operand 350 states and 501 transitions. Second operand has 29 states, 28 states have (on average 4.642857142857143) internal successors, (130), 28 states have internal predecessors, (130), 10 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (42), 9 states have call predecessors, (42), 10 states have call successors, (42) [2023-12-02 16:02:41,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:02:43,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:02:47,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:03:04,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:03:10,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:03:15,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:03:20,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:03:22,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:03:39,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:03:43,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:04:21,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:04:40,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:04:40,647 INFO L93 Difference]: Finished difference Result 1264 states and 1767 transitions. [2023-12-02 16:04:40,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-02 16:04:40,649 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.642857142857143) internal successors, (130), 28 states have internal predecessors, (130), 10 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (42), 9 states have call predecessors, (42), 10 states have call successors, (42) Word has length 111 [2023-12-02 16:04:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:04:40,655 INFO L225 Difference]: With dead ends: 1264 [2023-12-02 16:04:40,655 INFO L226 Difference]: Without dead ends: 915 [2023-12-02 16:04:40,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 359 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1582 ImplicationChecksByTransitivity, 115.2s TimeCoverageRelationStatistics Valid=1512, Invalid=4643, Unknown=7, NotChecked=0, Total=6162 [2023-12-02 16:04:40,659 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 2445 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2445 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 3484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.8s IncrementalHoareTripleChecker+Time [2023-12-02 16:04:40,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2445 Valid, 1912 Invalid, 3484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 101.8s Time] [2023-12-02 16:04:40,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2023-12-02 16:04:40,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 409. [2023-12-02 16:04:40,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 348 states have (on average 1.3591954022988506) internal successors, (473), 350 states have internal predecessors, (473), 53 states have call successors, (53), 7 states have call predecessors, (53), 7 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-02 16:04:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 579 transitions. [2023-12-02 16:04:40,755 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 579 transitions. Word has length 111 [2023-12-02 16:04:40,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:04:40,755 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 579 transitions. [2023-12-02 16:04:40,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.642857142857143) internal successors, (130), 28 states have internal predecessors, (130), 10 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (42), 9 states have call predecessors, (42), 10 states have call successors, (42) [2023-12-02 16:04:40,756 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 579 transitions. [2023-12-02 16:04:40,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 16:04:40,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:04:40,758 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:04:40,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-12-02 16:04:40,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 16:04:41,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-02 16:04:41,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:04:41,359 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:04:41,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:04:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash 289087309, now seen corresponding path program 1 times [2023-12-02 16:04:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:04:41,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471352320] [2023-12-02 16:04:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:04:41,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:04:41,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:04:41,361 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:04:41,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-02 16:04:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:04:41,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 16:04:41,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:04:42,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:04:44,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:04:45,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:04:46,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:04:48,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-02 16:04:49,672 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 23 [2023-12-02 16:04:51,204 INFO L349 Elim1Store]: treesize reduction 43, result has 25.9 percent of original size [2023-12-02 16:04:51,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 47 [2023-12-02 16:04:52,531 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 56 treesize of output 49 [2023-12-02 16:04:53,253 INFO L349 Elim1Store]: treesize reduction 71, result has 17.4 percent of original size [2023-12-02 16:04:53,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 93 treesize of output 92 [2023-12-02 16:04:53,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:04:53,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 49 [2023-12-02 16:04:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 176 proven. 96 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-02 16:04:53,845 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:05:16,729 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:05:16,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471352320] [2023-12-02 16:05:16,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471352320] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:05:16,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [821250505] [2023-12-02 16:05:16,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:16,729 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:05:16,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:05:16,730 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:05:16,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 16:05:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:18,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-02 16:05:18,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:18,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-02 16:05:23,830 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 120 treesize of output 63 [2023-12-02 16:05:28,872 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 120 treesize of output 63 [2023-12-02 16:05:32,082 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 117 treesize of output 71 [2023-12-02 16:05:36,215 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 128 treesize of output 74 [2023-12-02 16:05:39,906 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 125 treesize of output 82 [2023-12-02 16:05:44,212 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 133 treesize of output 93 [2023-12-02 16:05:48,309 INFO L349 Elim1Store]: treesize reduction 79, result has 16.0 percent of original size [2023-12-02 16:05:48,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 80 [2023-12-02 16:05:51,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 107 treesize of output 86 [2023-12-02 16:05:59,408 INFO L349 Elim1Store]: treesize reduction 67, result has 14.1 percent of original size [2023-12-02 16:05:59,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 104 treesize of output 113 [2023-12-02 16:06:05,432 INFO L349 Elim1Store]: treesize reduction 103, result has 12.7 percent of original size [2023-12-02 16:06:05,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 80 treesize of output 108 [2023-12-02 16:06:13,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 55 [2023-12-02 16:06:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 176 proven. 96 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-02 16:06:29,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:06:56,342 WARN L854 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_9_Pointer~0.base (_ BitVec 32)) (v_ArrVal_614 (_ BitVec 32)) (~WrapperStruct00_var_1_9_Pointer~0.offset (_ BitVec 32)) (~WrapperStruct00_var_1_12_Pointer~0.offset (_ BitVec 32))) (fp.geq (fp.neg (let ((.cse0 (let ((.cse1 (select (let ((.cse2 (let ((.cse3 (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset v_ArrVal_614)))) (store .cse3 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv4294967040 32) ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse3 c_~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset))))))))))) (store .cse2 c_~WrapperStruct00_var_1_8_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse2 ~WrapperStruct00_var_1_9_Pointer~0.base) ~WrapperStruct00_var_1_9_Pointer~0.offset)))))) c_~WrapperStruct00_var_1_2_Pointer~0.base))) (concat (select .cse1 (bvadd (_ bv4 32) c_~WrapperStruct00_var_1_2_Pointer~0.offset)) (select .cse1 c_~WrapperStruct00_var_1_2_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))) ((_ to_fp 11 53) c_currentRoundingMode (/ 67.0 4.0)))) is different from false [2023-12-02 16:07:09,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [821250505] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:07:09,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658744809] [2023-12-02 16:07:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:09,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:07:09,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:07:09,922 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:07:09,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-02 16:07:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:10,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 16:07:10,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:07:24,318 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2023-12-02 16:07:24,318 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 1 case distinctions, treesize of input 17 treesize of output 25 [2023-12-02 16:07:29,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:07:29,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 16:07:29,084 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 44 treesize of output 27 [2023-12-02 16:07:31,895 INFO L349 Elim1Store]: treesize reduction 51, result has 25.0 percent of original size [2023-12-02 16:07:31,895 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 4 case distinctions, treesize of input 89 treesize of output 76 [2023-12-02 16:07:33,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:07:33,590 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 89 treesize of output 41 [2023-12-02 16:07:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 16:07:34,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:07:34,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658744809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:34,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:07:34,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 16] total 34 [2023-12-02 16:07:34,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363532928] [2023-12-02 16:07:34,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:34,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:07:34,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:07:34,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:07:34,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=2168, Unknown=28, NotChecked=96, Total=2550 [2023-12-02 16:07:34,013 INFO L87 Difference]: Start difference. First operand 409 states and 579 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 16:08:07,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:08:07,731 INFO L93 Difference]: Finished difference Result 885 states and 1258 transitions. [2023-12-02 16:08:07,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 16:08:07,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 112 [2023-12-02 16:08:07,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:08:07,738 INFO L225 Difference]: With dead ends: 885 [2023-12-02 16:08:07,738 INFO L226 Difference]: Without dead ends: 690 [2023-12-02 16:08:07,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 331 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 972 ImplicationChecksByTransitivity, 124.8s TimeCoverageRelationStatistics Valid=314, Invalid=2524, Unknown=28, NotChecked=104, Total=2970 [2023-12-02 16:08:07,740 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 263 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:08:07,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 544 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 24.6s Time] [2023-12-02 16:08:07,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-12-02 16:08:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 443. [2023-12-02 16:08:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 382 states have (on average 1.369109947643979) internal successors, (523), 384 states have internal predecessors, (523), 53 states have call successors, (53), 7 states have call predecessors, (53), 7 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-02 16:08:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 629 transitions. [2023-12-02 16:08:07,866 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 629 transitions. Word has length 112 [2023-12-02 16:08:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:08:07,867 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 629 transitions. [2023-12-02 16:08:07,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 16:08:07,867 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 629 transitions. [2023-12-02 16:08:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 16:08:07,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:08:07,869 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:08:07,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 16:08:08,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-02 16:08:08,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b93ad9-5a23-4703-ab93-b6e2e8a9dca9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0