./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5 --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 9f2585eba40b5252f785f265b9872263af0c48c9373a5d882dd5881c41fcdf34 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:54:04,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:54:04,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:54:04,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:54:04,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:54:04,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:54:04,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:54:04,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:54:04,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:54:04,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:54:04,547 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:54:04,548 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:54:04,549 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:54:04,551 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:54:04,551 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:54:04,552 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:54:04,552 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:54:04,553 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:54:04,553 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:54:04,553 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:54:04,554 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:54:04,555 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:54:04,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:54:04,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:54:04,557 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:54:04,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:54:04,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:54:04,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:54:04,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:54:04,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:54:04,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:54:04,571 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:54:04,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:54:04,572 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:54:04,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:54:04,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:54:04,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:54:04,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:54:04,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:54:04,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:54:04,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:54:04,575 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:54:04,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:54:04,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:54:04,576 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:54:04,576 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:54:04,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:54:04,576 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_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f2585eba40b5252f785f265b9872263af0c48c9373a5d882dd5881c41fcdf34 [2023-11-21 19:54:04,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:54:04,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:54:04,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:54:04,979 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:54:04,980 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:54:04,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i [2023-11-21 19:54:08,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:54:08,382 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:54:08,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i [2023-11-21 19:54:08,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/data/11b8621f3/e2532ca2d44c42ae99900eb0e5feb1a5/FLAGf772c7a9b [2023-11-21 19:54:08,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/data/11b8621f3/e2532ca2d44c42ae99900eb0e5feb1a5 [2023-11-21 19:54:08,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:54:08,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:54:08,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:54:08,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:54:08,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:54:08,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@160988bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08, skipping insertion in model container [2023-11-21 19:54:08,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,455 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:54:08,608 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_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i[916,929] [2023-11-21 19:54:08,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:54:08,677 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:54:08,692 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_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i[916,929] [2023-11-21 19:54:08,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:54:08,761 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:54:08,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08 WrapperNode [2023-11-21 19:54:08,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:54:08,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:54:08,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:54:08,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:54:08,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,866 INFO L138 Inliner]: procedures = 26, calls = 129, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 314 [2023-11-21 19:54:08,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:54:08,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:54:08,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:54:08,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:54:08,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:54:08,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:54:08,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:54:08,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:54:08,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (1/1) ... [2023-11-21 19:54:08,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:54:08,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:54:08,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:54:09,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:54:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:54:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:54:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:54:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:54:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:54:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:54:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:54:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:54:09,168 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:54:09,170 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:54:09,642 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:54:10,332 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:54:10,332 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:54:10,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:10 BoogieIcfgContainer [2023-11-21 19:54:10,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:54:10,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:54:10,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:54:10,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:54:10,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:54:08" (1/3) ... [2023-11-21 19:54:10,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6fcdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:54:10, skipping insertion in model container [2023-11-21 19:54:10,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:08" (2/3) ... [2023-11-21 19:54:10,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6fcdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:54:10, skipping insertion in model container [2023-11-21 19:54:10,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:10" (3/3) ... [2023-11-21 19:54:10,350 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-59.i [2023-11-21 19:54:10,372 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:54:10,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:54:10,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:54:10,447 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;@5921ca53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:54:10,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:54:10,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-21 19:54:10,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-21 19:54:10,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:10,465 INFO L195 NwaCegarLoop]: trace histogram [18, 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] [2023-11-21 19:54:10,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:54:10,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:10,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2060800423, now seen corresponding path program 1 times [2023-11-21 19:54:10,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:10,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314984699] [2023-11-21 19:54:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:10,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:10,677 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:54:10,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540108755] [2023-11-21 19:54:10,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:10,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:54:10,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:54:10,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:54:10,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137acbd5-c00d-4bea-8d57-dbf00a07e9e0/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:54:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:11,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 111 conjunts are in the unsatisfiable core [2023-11-21 19:54:11,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:54:11,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:11,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:11,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:11,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:11,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:11,605 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-21 19:54:11,606 INFO L378 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 36 treesize of output 41 [2023-11-21 19:54:12,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:12,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:12,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:12,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:12,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:12,590 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-21 19:54:12,591 INFO L378 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 40 treesize of output 45 [2023-11-21 19:54:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:13,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:13,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2023-11-21 19:54:14,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:14,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:14,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:14,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2023-11-21 19:54:15,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:15,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:15,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:15,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 55 [2023-11-21 19:54:17,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:17,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:17,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:17,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-11-21 19:54:18,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:18,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:18,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:18,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 80 [2023-11-21 19:54:19,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:19,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:19,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:19,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 80 [2023-11-21 19:54:19,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:19,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:19,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 19:54:19,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 80 [2023-11-21 19:54:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 91 proven. 164 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-21 19:54:24,456 INFO L327 TraceCheckSpWp]: Computing backward predicates...