./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.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_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/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_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/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_1b49d198-f030-43fd-950b-db1995c07d5a/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 660f06fd7b788e8c10cf619684bc86bfa7277339b3513d64ca91be95bd68ab85 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:18:57,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:18:58,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:18:58,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:18:58,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:18:58,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:18:58,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:18:58,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:18:58,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:18:58,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:18:58,110 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:18:58,111 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:18:58,111 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:18:58,113 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:18:58,114 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:18:58,114 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:18:58,114 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:18:58,115 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:18:58,116 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:18:58,116 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:18:58,116 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:18:58,117 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:18:58,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:18:58,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:18:58,119 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:18:58,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:18:58,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:18:58,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:18:58,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:18:58,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:18:58,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:18:58,123 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:18:58,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:18:58,123 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:18:58,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:18:58,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:18:58,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:58,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:18:58,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:18:58,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:18:58,125 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:18:58,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:18:58,126 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:18:58,126 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:18:58,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:18:58,127 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_1b49d198-f030-43fd-950b-db1995c07d5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 660f06fd7b788e8c10cf619684bc86bfa7277339b3513d64ca91be95bd68ab85 [2023-11-19 05:18:58,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:18:58,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:18:58,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:18:58,504 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:18:58,505 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:18:58,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2023-11-19 05:19:01,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:19:01,765 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:19:01,771 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2023-11-19 05:19:01,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/data/2f971ac85/2412fe31a35e452fb3dd594ae7ed4185/FLAG50cb49147 [2023-11-19 05:19:02,133 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/data/2f971ac85/2412fe31a35e452fb3dd594ae7ed4185 [2023-11-19 05:19:02,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:19:02,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:19:02,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:02,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:19:02,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:19:02,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0a964c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02, skipping insertion in model container [2023-11-19 05:19:02,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,178 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:19:02,395 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_1b49d198-f030-43fd-950b-db1995c07d5a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i[916,929] [2023-11-19 05:19:02,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:02,470 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:19:02,485 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_1b49d198-f030-43fd-950b-db1995c07d5a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i[916,929] [2023-11-19 05:19:02,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:02,554 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:19:02,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02 WrapperNode [2023-11-19 05:19:02,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:02,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:02,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:19:02,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:19:02,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,632 INFO L138 Inliner]: procedures = 26, calls = 182, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 464 [2023-11-19 05:19:02,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:02,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:19:02,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:19:02,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:19:02,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:19:02,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:19:02,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:19:02,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:19:02,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (1/1) ... [2023-11-19 05:19:02,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:19:02,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:19:02,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:19:02,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:19:02,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:19:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:19:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:19:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:19:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:19:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:19:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:19:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:19:03,018 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:19:03,021 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:19:03,661 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:19:04,705 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:19:04,705 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:19:04,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:04 BoogieIcfgContainer [2023-11-19 05:19:04,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:19:04,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:19:04,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:19:04,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:19:04,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:19:02" (1/3) ... [2023-11-19 05:19:04,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cba8e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:04, skipping insertion in model container [2023-11-19 05:19:04,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:02" (2/3) ... [2023-11-19 05:19:04,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cba8e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:04, skipping insertion in model container [2023-11-19 05:19:04,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:04" (3/3) ... [2023-11-19 05:19:04,724 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-71.i [2023-11-19 05:19:04,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:19:04,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:19:04,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:19:04,809 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;@33c5d881, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:19:04,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:19:04,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 05:19:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 05:19:04,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:04,829 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:19:04,829 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:04,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:04,835 INFO L85 PathProgramCache]: Analyzing trace with hash 119093371, now seen corresponding path program 1 times [2023-11-19 05:19:04,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:04,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79417340] [2023-11-19 05:19:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:04,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:05,119 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:19:05,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146164434] [2023-11-19 05:19:05,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:05,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:19:05,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:19:05,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:19:05,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b49d198-f030-43fd-950b-db1995c07d5a/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:19:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:18,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 186 conjunts are in the unsatisfiable core [2023-11-19 05:19:18,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:19,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:19,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:19,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:19,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:19,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:19,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:19,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:19,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:19,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:19,823 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 53 [2023-11-19 05:19:22,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:22,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:22,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:22,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:22,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:22,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:22,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:22,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:22,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:22,836 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 53 [2023-11-19 05:19:25,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:25,838 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 62 treesize of output 65 [2023-11-19 05:19:28,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:28,399 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 71 treesize of output 77 [2023-11-19 05:19:30,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:30,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 89 [2023-11-19 05:19:32,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:32,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 89 [2023-11-19 05:19:33,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:33,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 89 [2023-11-19 05:19:35,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:35,628 INFO L349 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2023-11-19 05:19:35,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 43 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 109 [2023-11-19 05:19:35,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2023-11-19 05:19:37,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:37,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:37,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:37,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:37,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:37,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:37,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:37,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:37,849 INFO L349 Elim1Store]: treesize reduction 117, result has 11.4 percent of original size [2023-11-19 05:19:37,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 101 treesize of output 121 [2023-11-19 05:19:43,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:19:43,451 INFO L224 Elim1Store]: Index analysis took 461 ms