./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 cf1a7837 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_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/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_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:11:09,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:11:09,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:11:09,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:11:09,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:11:09,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:11:09,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:11:09,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:11:09,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:11:09,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:11:09,804 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:11:09,805 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:11:09,806 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:11:09,806 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:11:09,807 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:11:09,807 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:11:09,808 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:11:09,809 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:11:09,809 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:11:09,810 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:11:09,811 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:11:09,811 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:11:09,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:11:09,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:11:09,813 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:11:09,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:11:09,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:11:09,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:11:09,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:11:09,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:11:09,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:11:09,817 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:11:09,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:11:09,818 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:11:09,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:11:09,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:11:09,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:09,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:11:09,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:11:09,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:11:09,827 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:11:09,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:11:09,828 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:11:09,828 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:11:09,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:11:09,829 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_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 660f06fd7b788e8c10cf619684bc86bfa7277339b3513d64ca91be95bd68ab85 [2023-11-12 00:11:10,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:11:10,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:11:10,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:11:10,188 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:11:10,188 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:11:10,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2023-11-12 00:11:13,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:11:13,584 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:11:13,584 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2023-11-12 00:11:13,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/data/9be2a18f7/eb378a77a2864f2cadf1305441589fed/FLAG19a7953b1 [2023-11-12 00:11:13,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/data/9be2a18f7/eb378a77a2864f2cadf1305441589fed [2023-11-12 00:11:13,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:11:13,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:11:13,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:13,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:11:13,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:11:13,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:13" (1/1) ... [2023-11-12 00:11:13,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce3334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:13, skipping insertion in model container [2023-11-12 00:11:13,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:13" (1/1) ... [2023-11-12 00:11:13,657 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:11:13,814 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_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i[916,929] [2023-11-12 00:11:13,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:13,933 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:11:13,947 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_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i[916,929] [2023-11-12 00:11:14,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:14,028 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:11:14,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14 WrapperNode [2023-11-12 00:11:14,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:14,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:14,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:11:14,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:11:14,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,105 INFO L138 Inliner]: procedures = 26, calls = 182, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 464 [2023-11-12 00:11:14,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:14,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:11:14,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:11:14,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:11:14,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:11:14,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:11:14,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:11:14,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:11:14,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (1/1) ... [2023-11-12 00:11:14,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:14,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:14,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:11:14,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:11:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:11:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:11:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:11:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:11:14,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:11:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:11:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:11:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:11:14,448 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:11:14,450 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:11:15,174 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:11:16,170 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:11:16,171 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:11:16,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:16 BoogieIcfgContainer [2023-11-12 00:11:16,174 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:11:16,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:11:16,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:11:16,181 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:11:16,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:11:13" (1/3) ... [2023-11-12 00:11:16,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313d3ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:16, skipping insertion in model container [2023-11-12 00:11:16,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:14" (2/3) ... [2023-11-12 00:11:16,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313d3ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:16, skipping insertion in model container [2023-11-12 00:11:16,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:16" (3/3) ... [2023-11-12 00:11:16,186 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-71.i [2023-11-12 00:11:16,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:11:16,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:11:16,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:11:16,274 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;@1b74aaeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:11:16,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:11:16,279 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) [2023-11-12 00:11:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-12 00:11:16,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:16,289 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] [2023-11-12 00:11:16,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:11:16,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash 119093371, now seen corresponding path program 1 times [2023-11-12 00:11:16,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:16,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254675384] [2023-11-12 00:11:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:16,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:16,517 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:11:16,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906770374] [2023-11-12 00:11:16,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:16,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:16,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:16,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:16,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41b23b0-dc15-4a6e-8fb2-c0e2f938e8f5/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:11:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:19,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 190 conjunts are in the unsatisfiable core [2023-11-12 00:11:19,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:21,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:21,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:21,072 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-12 00:11:24,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:24,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:24,276 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-12 00:11:27,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:27,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:27,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:27,386 INFO L351 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 39 treesize of output 33 [2023-11-12 00:11:30,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:30,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:30,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:30,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:30,316 INFO L351 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 [2023-11-12 00:11:33,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:33,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:33,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:33,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:33,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:33,050 INFO L351 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 57 treesize of output 57 [2023-11-12 00:11:34,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:34,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:34,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:34,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:34,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:34,821 INFO L351 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 57 treesize of output 57 [2023-11-12 00:11:36,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:36,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:36,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:36,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:36,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:36,615 INFO L351 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 57 treesize of output 57 [2023-11-12 00:11:38,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:38,916 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-12 00:11:38,917 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 73 [2023-11-12 00:11:40,897 INFO L351 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 52 treesize of output 59 [2023-11-12 00:11:45,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:45,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:45,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:45,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:45,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:45,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:45,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:45,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:45,413 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 582