./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ --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 ab65447cc97ed4f251e6c4b0afc78d9d0c0d28068c3e23c2f6f7c53903035da5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:22:01,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:22:02,081 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:22:02,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:22:02,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:22:02,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:22:02,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:22:02,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:22:02,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:22:02,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:22:02,121 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:22:02,122 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:22:02,122 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:22:02,123 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:22:02,124 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:22:02,124 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:22:02,125 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:22:02,126 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:22:02,126 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:22:02,127 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:22:02,128 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:22:02,129 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:22:02,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:22:02,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:22:02,131 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:22:02,132 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:22:02,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:22:02,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:22:02,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:22:02,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:22:02,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:22:02,135 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:22:02,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:22:02,136 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:22:02,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:22:02,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:22:02,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:02,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:22:02,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:22:02,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:22:02,140 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:22:02,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:22:02,141 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:22:02,142 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:22:02,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:22:02,143 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_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab65447cc97ed4f251e6c4b0afc78d9d0c0d28068c3e23c2f6f7c53903035da5 [2023-11-19 05:22:02,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:22:02,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:22:02,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:22:02,499 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:22:02,500 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:22:02,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i [2023-11-19 05:22:06,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:22:06,671 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:22:06,672 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i [2023-11-19 05:22:06,685 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/data/df1fbdac1/7a2b2f839ef544548e5388c21304fc1a/FLAGc580b9db6 [2023-11-19 05:22:06,705 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/data/df1fbdac1/7a2b2f839ef544548e5388c21304fc1a [2023-11-19 05:22:06,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:22:06,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:22:06,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:06,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:22:06,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:22:06,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:06" (1/1) ... [2023-11-19 05:22:06,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d953a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:06, skipping insertion in model container [2023-11-19 05:22:06,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:06" (1/1) ... [2023-11-19 05:22:06,764 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:22:07,005 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_a53235d5-f2fb-4375-add8-53ddb5b584a1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i[916,929] [2023-11-19 05:22:07,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:07,089 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:22:07,105 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_a53235d5-f2fb-4375-add8-53ddb5b584a1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i[916,929] [2023-11-19 05:22:07,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:07,172 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:22:07,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07 WrapperNode [2023-11-19 05:22:07,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:07,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:07,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:22:07,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:22:07,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,257 INFO L138 Inliner]: procedures = 26, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 406 [2023-11-19 05:22:07,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:07,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:22:07,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:22:07,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:22:07,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,285 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,285 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,324 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:22:07,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:22:07,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:22:07,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:22:07,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (1/1) ... [2023-11-19 05:22:07,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:07,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:22:07,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:22:07,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:22:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:22:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:22:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:22:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:22:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:22:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:22:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:22:07,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:22:07,706 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:22:07,709 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:22:08,561 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:22:09,530 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:22:09,531 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:22:09,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:09 BoogieIcfgContainer [2023-11-19 05:22:09,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:22:09,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:22:09,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:22:09,552 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:22:09,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:22:06" (1/3) ... [2023-11-19 05:22:09,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:09, skipping insertion in model container [2023-11-19 05:22:09,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:07" (2/3) ... [2023-11-19 05:22:09,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:09, skipping insertion in model container [2023-11-19 05:22:09,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:09" (3/3) ... [2023-11-19 05:22:09,560 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-27.i [2023-11-19 05:22:09,586 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:22:09,587 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:22:09,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:22:09,677 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;@2458b4af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:22:09,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:22:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:22:09,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 05:22:09,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:09,701 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:09,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:09,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:09,712 INFO L85 PathProgramCache]: Analyzing trace with hash -451897616, now seen corresponding path program 1 times [2023-11-19 05:22:09,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:09,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594368145] [2023-11-19 05:22:09,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:09,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:10,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:22:10,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520249948] [2023-11-19 05:22:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:10,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:22:10,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:22:10,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:22:10,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53235d5-f2fb-4375-add8-53ddb5b584a1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:22:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:15,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 176 conjunts are in the unsatisfiable core [2023-11-19 05:22:15,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:22:16,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:16,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:16,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:16,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:16,405 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 44 treesize of output 41 [2023-11-19 05:22:18,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:18,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:18,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:18,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:18,730 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 44 treesize of output 41 [2023-11-19 05:22:21,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:21,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:21,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:21,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:21,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:21,930 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 58 treesize of output 54 [2023-11-19 05:22:24,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:24,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:24,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:24,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:24,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:24,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:24,247 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 65 treesize of output 64 [2023-11-19 05:22:25,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:25,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:25,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:25,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:25,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:25,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:25,778 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 65 treesize of output 64 [2023-11-19 05:22:27,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:27,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:27,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:27,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:27,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:27,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:27,305 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 65 treesize of output 64 [2023-11-19 05:22:28,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:28,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:28,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:28,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:28,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:28,752 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 0 case distinctions, treesize of input 65 treesize of output 57 [2023-11-19 05:22:30,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:30,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:30,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:30,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:30,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:30,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:22:30,936 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 76 treesize of output 71 [2023-11-19 05:22:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 7 proven. 253 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:22:58,523 INFO L327 TraceCheckSpWp]: Computing backward predicates...