./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.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_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91 --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 6b3d37dbb1f844bbdab9795055d991e82d88af691e0e65987480a92814525937 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:04:12,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:04:12,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-25 00:04:12,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:04:12,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:04:12,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:04:12,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:04:12,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:04:12,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:04:12,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:04:12,343 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:04:12,344 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:04:12,345 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:04:12,346 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:04:12,347 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:04:12,347 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:04:12,348 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:04:12,348 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:04:12,349 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:04:12,349 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:04:12,350 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:04:12,351 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:04:12,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:04:12,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:04:12,353 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:04:12,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:04:12,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:04:12,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:04:12,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:04:12,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:04:12,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:04:12,357 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:04:12,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:04:12,358 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:04:12,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:04:12,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:04:12,359 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:04:12,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:12,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:04:12,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:04:12,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:04:12,361 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:04:12,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:04:12,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:04:12,363 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:04:12,363 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:04:12,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:04:12,364 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_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b3d37dbb1f844bbdab9795055d991e82d88af691e0e65987480a92814525937 [2023-11-25 00:04:12,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:04:12,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:04:12,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:04:12,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:04:12,742 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:04:12,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i [2023-11-25 00:04:15,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:04:16,216 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:04:16,221 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i [2023-11-25 00:04:16,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/data/7c1978ff6/7275dd3eeb2d4fb1ab1bc9ba73d5a354/FLAG62e347d99 [2023-11-25 00:04:16,254 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/data/7c1978ff6/7275dd3eeb2d4fb1ab1bc9ba73d5a354 [2023-11-25 00:04:16,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:04:16,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:04:16,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:16,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:04:16,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:04:16,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c97bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16, skipping insertion in model container [2023-11-25 00:04:16,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,320 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:04:16,520 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_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i[917,930] [2023-11-25 00:04:16,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:16,633 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:04:16,648 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_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i[917,930] [2023-11-25 00:04:16,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:16,710 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:04:16,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16 WrapperNode [2023-11-25 00:04:16,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:16,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:16,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:04:16,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:04:16,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,797 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 401 [2023-11-25 00:04:16,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:16,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:04:16,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:04:16,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:04:16,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:04:16,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:04:16,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:04:16,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:04:16,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:16,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:04:16,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:04:16,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:04:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:04:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:04:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:04:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:04:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:04:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:04:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:04:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:04:17,161 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:04:17,163 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:04:17,869 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:04:18,480 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:04:18,480 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:04:18,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:18 BoogieIcfgContainer [2023-11-25 00:04:18,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:04:18,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:04:18,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:04:18,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:04:18,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:04:16" (1/3) ... [2023-11-25 00:04:18,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7fb388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:18, skipping insertion in model container [2023-11-25 00:04:18,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16" (2/3) ... [2023-11-25 00:04:18,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7fb388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:18, skipping insertion in model container [2023-11-25 00:04:18,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:18" (3/3) ... [2023-11-25 00:04:18,491 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-12.i [2023-11-25 00:04:18,512 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:04:18,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:04:18,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:04:18,581 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;@18566480, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:04:18,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:04:18,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-25 00:04:18,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-25 00:04:18,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:18,599 INFO L195 NwaCegarLoop]: trace histogram [16, 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] [2023-11-25 00:04:18,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:04:18,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:18,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2113453750, now seen corresponding path program 1 times [2023-11-25 00:04:18,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:04:18,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249425564] [2023-11-25 00:04:18,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:18,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:04:18,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:04:18,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644571673] [2023-11-25 00:04:18,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:18,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:04:18,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:04:18,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:04:18,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98cf1f9-0702-4c2b-a511-62ec7d966e5a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:04:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:04:19,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 159 conjunts are in the unsatisfiable core [2023-11-25 00:04:19,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:04:20,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2023-11-25 00:04:23,493 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 39 treesize of output 33 [2023-11-25 00:04:26,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-11-25 00:04:29,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 57 [2023-11-25 00:04:30,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 57 [2023-11-25 00:04:31,995 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 57 treesize of output 57 [2023-11-25 00:04:33,926 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 66 treesize of output 69 [2023-11-25 00:04:36,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 81 [2023-11-25 00:04:55,320 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 42 proven. 186 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-25 00:04:55,320 INFO L327 TraceCheckSpWp]: Computing backward predicates...