./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c8d69d1f3064c47045f447426cd788cf9b3338c09ab601cc7dd6947b7697cf1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:37:47,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:37:47,603 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:37:47,607 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:37:47,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:37:47,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:37:47,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:37:47,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:37:47,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:37:47,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:37:47,633 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:37:47,634 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:37:47,634 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:37:47,635 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:37:47,635 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:37:47,636 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:37:47,636 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:37:47,637 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:37:47,637 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:37:47,638 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:37:47,638 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:37:47,639 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:37:47,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:37:47,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:37:47,641 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:37:47,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:37:47,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:37:47,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:37:47,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:37:47,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:37:47,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:37:47,644 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:37:47,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:37:47,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:37:47,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:37:47,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:37:47,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:37:47,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:37:47,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:37:47,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:37:47,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:37:47,646 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:37:47,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:37:47,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:37:47,647 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:37:47,647 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:37:47,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:37:47,647 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_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8d69d1f3064c47045f447426cd788cf9b3338c09ab601cc7dd6947b7697cf1 [2023-12-02 17:37:47,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:37:47,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:37:47,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:37:47,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:37:47,886 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:37:47,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-88.i [2023-12-02 17:37:50,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:37:50,866 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:37:50,866 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-88.i [2023-12-02 17:37:50,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/data/9fee68e47/bf5c1caadbf945e78ab5e9ac24f4d19a/FLAG453239fa2 [2023-12-02 17:37:50,889 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/data/9fee68e47/bf5c1caadbf945e78ab5e9ac24f4d19a [2023-12-02 17:37:50,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:37:50,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:37:50,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:37:50,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:37:50,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:37:50,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:37:50" (1/1) ... [2023-12-02 17:37:50,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da6539c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:50, skipping insertion in model container [2023-12-02 17:37:50,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:37:50" (1/1) ... [2023-12-02 17:37:50,934 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:37:51,063 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_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-88.i[917,930] [2023-12-02 17:37:51,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:37:51,135 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:37:51,146 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_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-88.i[917,930] [2023-12-02 17:37:51,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:37:51,202 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:37:51,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51 WrapperNode [2023-12-02 17:37:51,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:37:51,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:37:51,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:37:51,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:37:51,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,263 INFO L138 Inliner]: procedures = 29, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 474 [2023-12-02 17:37:51,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:37:51,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:37:51,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:37:51,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:37:51,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:37:51,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:37:51,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:37:51,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:37:51,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (1/1) ... [2023-12-02 17:37:51,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:37:51,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:37:51,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:37:51,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:37:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:37:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 17:37:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:37:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 17:37:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:37:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 17:37:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:37:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:37:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:37:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:37:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:37:51,512 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:37:51,514 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:37:51,966 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:37:52,510 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:37:52,510 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:37:52,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:37:52 BoogieIcfgContainer [2023-12-02 17:37:52,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:37:52,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:37:52,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:37:52,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:37:52,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:37:50" (1/3) ... [2023-12-02 17:37:52,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67dc54a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:37:52, skipping insertion in model container [2023-12-02 17:37:52,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:37:51" (2/3) ... [2023-12-02 17:37:52,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67dc54a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:37:52, skipping insertion in model container [2023-12-02 17:37:52,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:37:52" (3/3) ... [2023-12-02 17:37:52,520 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-88.i [2023-12-02 17:37:52,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:37:52,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:37:52,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:37:52,578 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;@7e9f97d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:37:52,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:37:52,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-02 17:37:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 17:37:52,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:37:52,590 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:37:52,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:37:52,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:37:52,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1982403366, now seen corresponding path program 1 times [2023-12-02 17:37:52,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:37:52,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770358667] [2023-12-02 17:37:52,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:37:52,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:37:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:42,275 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 17:38:42,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:38:42,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770358667] [2023-12-02 17:38:42,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770358667] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:38:42,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088055371] [2023-12-02 17:38:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:38:42,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:38:42,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:38:42,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:38:42,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5fd6cd-9eac-40f2-9835-dfacd6fd361d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:38:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:43,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 167 conjunts are in the unsatisfiable core [2023-12-02 17:38:43,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:38:44,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 17:38:46,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 17:38:47,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 17:38:50,168 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 55 treesize of output 55 [2023-12-02 17:38:51,899 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 55 treesize of output 55 [2023-12-02 17:38:53,665 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 55 treesize of output 55 [2023-12-02 17:38:55,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 67 [2023-12-02 17:38:57,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 67 [2023-12-02 17:38:58,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 67 [2023-12-02 17:39:03,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:39:03,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:39:03,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:39:03,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:39:03,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:39:03,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:39:03,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:39:03,876 INFO L349 Elim1Store]: treesize reduction 101, result has 12.9 percent of original size [2023-12-02 17:39:03,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 8 case distinctions, treesize of input 236 treesize of output 227 [2023-12-02 17:39:04,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 119 [2023-12-02 17:39:04,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 264 [2023-12-02 17:39:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 167 proven. 58 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-02 17:39:13,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:39:16,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:39:16,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 173 [2023-12-02 17:39:16,949 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:39:16,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1053 treesize of output 1054