./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ --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 7fd36b961a9568d61d1e2740d3df2c3ef998c6b657eefe353ce47ee368fc6b64 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:48:17,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:48:17,873 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:48:17,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:48:17,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:48:17,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:48:17,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:48:17,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:48:17,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:48:17,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:48:17,937 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:48:17,938 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:48:17,938 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:48:17,940 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:48:17,941 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:48:17,942 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:48:17,942 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:48:17,943 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:48:17,943 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:48:17,944 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:48:17,944 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:48:17,945 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:48:17,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:48:17,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:48:17,948 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:48:17,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:48:17,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:48:17,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:48:17,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:48:17,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:48:17,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:48:17,952 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:48:17,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:48:17,953 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:48:17,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:48:17,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:48:17,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:17,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:48:17,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:48:17,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:48:17,956 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:48:17,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:48:17,956 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:48:17,957 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:48:17,958 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:48:17,958 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_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fd36b961a9568d61d1e2740d3df2c3ef998c6b657eefe353ce47ee368fc6b64 [2023-11-19 04:48:18,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:48:18,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:48:18,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:48:18,315 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:48:18,315 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:48:18,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-84.i [2023-11-19 04:48:21,618 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:48:21,914 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:48:21,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-84.i [2023-11-19 04:48:21,927 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/data/3a81e809b/b77ce616ad47461dbb4a55e76e13ac79/FLAG16bc0c213 [2023-11-19 04:48:21,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/data/3a81e809b/b77ce616ad47461dbb4a55e76e13ac79 [2023-11-19 04:48:21,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:48:21,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:48:21,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:21,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:48:21,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:48:21,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:21" (1/1) ... [2023-11-19 04:48:21,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fafc9cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:21, skipping insertion in model container [2023-11-19 04:48:21,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:21" (1/1) ... [2023-11-19 04:48:22,018 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:48:22,226 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_e42e821c-803a-4912-b227-ed491476a57e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-84.i[917,930] [2023-11-19 04:48:22,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:22,327 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:48:22,340 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_e42e821c-803a-4912-b227-ed491476a57e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-84.i[917,930] [2023-11-19 04:48:22,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:22,403 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:48:22,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22 WrapperNode [2023-11-19 04:48:22,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:22,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:22,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:48:22,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:48:22,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,511 INFO L138 Inliner]: procedures = 29, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 398 [2023-11-19 04:48:22,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:22,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:48:22,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:48:22,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:48:22,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:48:22,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:48:22,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:48:22,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:48:22,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (1/1) ... [2023-11-19 04:48:22,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:22,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:22,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:48:22,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:48:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:48:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 04:48:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:48:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 04:48:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:48:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 04:48:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:48:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:48:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:48:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:48:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:48:22,867 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:48:22,869 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:48:23,445 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:48:24,280 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:48:24,280 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:48:24,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:24 BoogieIcfgContainer [2023-11-19 04:48:24,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:48:24,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:48:24,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:48:24,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:48:24,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:48:21" (1/3) ... [2023-11-19 04:48:24,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b29492e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:24, skipping insertion in model container [2023-11-19 04:48:24,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:22" (2/3) ... [2023-11-19 04:48:24,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b29492e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:24, skipping insertion in model container [2023-11-19 04:48:24,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:24" (3/3) ... [2023-11-19 04:48:24,307 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-84.i [2023-11-19 04:48:24,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:48:24,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:48:24,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:48:24,426 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;@6b062f9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:48:24,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:48:24,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 04:48:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 04:48:24,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:48:24,449 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:48:24,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:48:24,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:48:24,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1679912344, now seen corresponding path program 1 times [2023-11-19 04:48:24,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:48:24,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386516003] [2023-11-19 04:48:24,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:24,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:48:24,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:48:24,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388412649] [2023-11-19 04:48:24,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:48:24,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:48:24,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:24,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:48:24,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e42e821c-803a-4912-b227-ed491476a57e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:48:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:48:27,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 222 conjunts are in the unsatisfiable core [2023-11-19 04:48:27,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:48:29,183 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 [2023-11-19 04:48:32,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2023-11-19 04:48:34,478 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 39 treesize of output 33 [2023-11-19 04:48:38,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2023-11-19 04:48:41,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 48 [2023-11-19 04:48:44,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2023-11-19 04:48:49,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 77 [2023-11-19 04:48:52,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 89 [2023-11-19 04:48:55,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 101 [2023-11-19 04:48:59,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 24 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 113 [2023-11-19 04:49:07,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 376 treesize of output 350 [2023-11-19 04:49:07,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:49:07,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:49:07,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:49:07,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:49:07,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:49:07,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:49:08,197 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-19 04:49:08,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 27 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 298 treesize of output 293 [2023-11-19 04:49:08,595 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 261 treesize of output 261