./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/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_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/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_a6dda03f-efbe-4a81-9711-f981b6e6694a/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 5e929c4003dd56b80bb766773f31b5c9376f023636b5de2c888cd8fd3433b56e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:13:18,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:13:18,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:13:18,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:13:18,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:13:18,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:13:18,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:13:18,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:13:18,559 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:13:18,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:13:18,566 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:13:18,567 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:13:18,568 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:13:18,570 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:13:18,571 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:13:18,571 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:13:18,572 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:13:18,572 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:13:18,573 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:13:18,574 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:13:18,574 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:13:18,575 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:13:18,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:13:18,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:13:18,577 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:13:18,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:13:18,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:13:18,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:13:18,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:13:18,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:13:18,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:13:18,582 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:13:18,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:13:18,583 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:13:18,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:13:18,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:13:18,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:13:18,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:13:18,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:13:18,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:13:18,585 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:13:18,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:13:18,586 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:13:18,586 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:13:18,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:13:18,587 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_a6dda03f-efbe-4a81-9711-f981b6e6694a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e929c4003dd56b80bb766773f31b5c9376f023636b5de2c888cd8fd3433b56e [2023-11-19 04:13:18,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:13:19,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:13:19,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:13:19,028 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:13:19,029 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:13:19,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i [2023-11-19 04:13:22,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:13:22,706 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:13:22,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i [2023-11-19 04:13:22,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/data/d074da279/b670b6de8fc548c490c078f1594040b2/FLAG7f4b0f21e [2023-11-19 04:13:22,733 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/data/d074da279/b670b6de8fc548c490c078f1594040b2 [2023-11-19 04:13:22,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:13:22,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:13:22,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:13:22,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:13:22,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:13:22,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:13:22" (1/1) ... [2023-11-19 04:13:22,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c0ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:22, skipping insertion in model container [2023-11-19 04:13:22,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:13:22" (1/1) ... [2023-11-19 04:13:22,802 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:13:22,949 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_a6dda03f-efbe-4a81-9711-f981b6e6694a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i[916,929] [2023-11-19 04:13:23,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:13:23,041 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:13:23,061 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_a6dda03f-efbe-4a81-9711-f981b6e6694a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i[916,929] [2023-11-19 04:13:23,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:13:23,134 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:13:23,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23 WrapperNode [2023-11-19 04:13:23,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:13:23,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:13:23,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:13:23,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:13:23,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,215 INFO L138 Inliner]: procedures = 26, calls = 190, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 498 [2023-11-19 04:13:23,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:13:23,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:13:23,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:13:23,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:13:23,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,256 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:13:23,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:13:23,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:13:23,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:13:23,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (1/1) ... [2023-11-19 04:13:23,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:13:23,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:23,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:13:23,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:13:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:13:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:13:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:13:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:13:23,374 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:13:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:13:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:13:23,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:13:23,547 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:13:23,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:13:24,209 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:13:25,752 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:13:25,753 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:13:25,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:25 BoogieIcfgContainer [2023-11-19 04:13:25,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:13:25,764 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:13:25,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:13:25,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:13:25,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:13:22" (1/3) ... [2023-11-19 04:13:25,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd87bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:25, skipping insertion in model container [2023-11-19 04:13:25,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:13:23" (2/3) ... [2023-11-19 04:13:25,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd87bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:25, skipping insertion in model container [2023-11-19 04:13:25,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:25" (3/3) ... [2023-11-19 04:13:25,776 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-85.i [2023-11-19 04:13:25,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:13:25,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:13:25,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:13:25,893 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;@9971a9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:13:25,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:13:25,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 04:13:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 04:13:25,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:25,920 INFO L195 NwaCegarLoop]: trace histogram [23, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:25,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:25,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:25,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1949319286, now seen corresponding path program 1 times [2023-11-19 04:13:25,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:25,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203706799] [2023-11-19 04:13:25,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:25,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:26,302 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:13:26,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884934323] [2023-11-19 04:13:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:26,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:13:26,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:26,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:13:26,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6dda03f-efbe-4a81-9711-f981b6e6694a/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:13:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:27,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 228 conjunts are in the unsatisfiable core [2023-11-19 04:13:27,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:28,827 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 04:13:32,117 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 04:13:35,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-19 04:13:37,998 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 34 treesize of output 25 [2023-11-19 04:13:40,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2023-11-19 04:13:43,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2023-11-19 04:13:45,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2023-11-19 04:13:48,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 73 [2023-11-19 04:13:50,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 85 [2023-11-19 04:13:51,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:51,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:51,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:51,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:51,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:51,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:51,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:51,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 85 [2023-11-19 04:13:53,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:53,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:53,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:53,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:53,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:53,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:13:53,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 85 [2023-11-19 04:14:00,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 696 treesize of output 614 [2023-11-19 04:14:01,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 676 treesize of output 592 [2023-11-19 04:14:01,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 652 treesize of output 574 [2023-11-19 04:14:02,279 INFO L224 Elim1Store]: Index analysis took 109 ms [2023-11-19 04:14:03,953 INFO L349 Elim1Store]: treesize reduction 109, result has 14.2 percent of original size [2023-11-19 04:14:03,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 14 select indices, 14 select index equivalence classes, 78 disjoint index pairs (out of 91 index pairs), introduced 17 new quantified variables, introduced 14 case distinctions, treesize of input 678 treesize of output 629 [2023-11-19 04:14:04,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:04,455 INFO L224 Elim1Store]: Index analysis took 193 ms [2023-11-19 04:14:05,477 INFO L349 Elim1Store]: treesize reduction 162, result has 10.0 percent of original size [2023-11-19 04:14:05,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 15 select indices, 15 select index equivalence classes, 91 disjoint index pairs (out of 105 index pairs), introduced 18 new quantified variables, introduced 17 case distinctions, treesize of input 704 treesize of output 838 [2023-11-19 04:14:06,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-11-19 04:14:06,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 04:14:07,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1