./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.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_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/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_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/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_4760e0cd-287d-40d2-af31-a18bda066ed8/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 d1558071458a9b20d19a0574bae4bc888f78db92e0ff6316a4aff911aa1d4e26 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:47,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:47,853 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:47:47,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:47,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:47,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:47,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:47,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:47,888 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:47,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:47,889 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:47,890 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:47,890 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:47,891 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:47,892 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:47,892 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:47,893 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:47,893 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:47,894 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:47,894 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:47,895 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:47,896 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:47,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:47,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:47,898 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:47,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:47,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:47,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:47,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:47,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:47,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:47,901 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:47,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:47,902 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:47,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:47,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:47,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:47,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:47,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:47,904 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:47,904 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:47,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:47,905 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:47,905 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:47,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:47,906 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_4760e0cd-287d-40d2-af31-a18bda066ed8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1558071458a9b20d19a0574bae4bc888f78db92e0ff6316a4aff911aa1d4e26 [2023-11-12 00:47:48,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:48,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:48,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:48,203 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:48,203 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:48,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i [2023-11-12 00:47:51,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:51,659 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:51,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i [2023-11-12 00:47:51,669 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/data/7371afc43/b4bf44076fba4b508bf7f497d1e113cf/FLAGaa0c27d29 [2023-11-12 00:47:51,685 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/data/7371afc43/b4bf44076fba4b508bf7f497d1e113cf [2023-11-12 00:47:51,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:51,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:51,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:51,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:51,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:51,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:51" (1/1) ... [2023-11-12 00:47:51,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b923e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:51, skipping insertion in model container [2023-11-12 00:47:51,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:51" (1/1) ... [2023-11-12 00:47:51,729 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:51,911 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_4760e0cd-287d-40d2-af31-a18bda066ed8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i[916,929] [2023-11-12 00:47:51,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:51,978 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:51,992 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_4760e0cd-287d-40d2-af31-a18bda066ed8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i[916,929] [2023-11-12 00:47:52,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:52,045 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:52,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52 WrapperNode [2023-11-12 00:47:52,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:52,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:52,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:52,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:52,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,106 INFO L138 Inliner]: procedures = 26, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 390 [2023-11-12 00:47:52,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:52,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:52,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:52,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:52,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:52,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:52,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:52,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:52,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (1/1) ... [2023-11-12 00:47:52,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:52,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:52,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:52,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:47:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:47:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:47:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:47:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:47:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:52,412 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:52,415 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:52,987 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:53,734 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:53,735 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:53,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:53 BoogieIcfgContainer [2023-11-12 00:47:53,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:53,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:53,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:53,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:53,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:51" (1/3) ... [2023-11-12 00:47:53,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d6cb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:53, skipping insertion in model container [2023-11-12 00:47:53,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:52" (2/3) ... [2023-11-12 00:47:53,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d6cb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:53, skipping insertion in model container [2023-11-12 00:47:53,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:53" (3/3) ... [2023-11-12 00:47:53,746 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-87.i [2023-11-12 00:47:53,767 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:53,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:53,816 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:53,823 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;@70133bf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:53,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-12 00:47:53,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-12 00:47:53,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:53,838 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:53,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:53,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:53,845 INFO L85 PathProgramCache]: Analyzing trace with hash 2016184553, now seen corresponding path program 1 times [2023-11-12 00:47:53,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:53,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164086449] [2023-11-12 00:47:53,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:53,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:54,155 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:47:54,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553578547] [2023-11-12 00:47:54,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:54,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:47:54,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:54,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:47:54,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4760e0cd-287d-40d2-af31-a18bda066ed8/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:47:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:55,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 149 conjunts are in the unsatisfiable core [2023-11-12 00:47:55,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:47:56,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:47:56,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:47:56,051 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 00:47:58,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:47:58,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:47:58,161 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 00:48:00,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:00,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:00,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:00,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:00,536 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-12 00:48:00,537 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2023-11-12 00:48:02,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:02,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:02,042 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 25 treesize of output 23 [2023-11-12 00:48:03,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:03,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:03,447 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 32 treesize of output 23 [2023-11-12 00:48:04,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:04,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:04,651 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 32 treesize of output 23 [2023-11-12 00:48:05,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:05,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:05,692 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 32 treesize of output 23 [2023-11-12 00:48:10,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:10,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,302 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#var_1_1~0.base| 15) [2023-11-12 00:48:12,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,438 INFO L217 Elim1Store]: Index analysis took 2199 ms [2023-11-12 00:48:12,441 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 515 treesize of output 311 [2023-11-12 00:48:12,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:12,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:12,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164086449] [2023-11-12 00:48:12,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:48:12,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553578547] [2023-11-12 00:48:12,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unexpected substitution problem. [2023-11-12 00:48:12,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1846712382] [2023-11-12 00:48:12,785 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2023-11-12 00:48:12,785 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:48:12,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:48:12,795 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:48:12,796 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:48:36,464 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-11-12 00:48:36,501 INFO L180 IcfgInterpreter]: Interpretation finished