./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire --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 645cc8cd2ca5c3df18e88a30b2b1ec0d9c7b704a87e37ccd990a4988acc7530a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:56,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:57,057 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:12:57,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:57,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:57,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:57,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:57,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:57,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:57,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:57,120 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:57,121 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:57,122 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:57,124 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:12:57,124 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:57,125 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:57,125 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:12:57,125 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:12:57,126 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:57,126 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:12:57,127 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:12:57,127 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:12:57,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:57,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:57,129 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:12:57,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:12:57,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:12:57,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:57,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:57,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:57,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:57,133 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:12:57,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:57,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:57,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:57,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:57,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:57,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:57,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:57,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:57,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:57,136 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:12:57,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:12:57,136 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:57,137 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:57,137 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:57,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:57,137 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_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 645cc8cd2ca5c3df18e88a30b2b1ec0d9c7b704a87e37ccd990a4988acc7530a [2023-11-23 21:12:57,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:57,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:57,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:57,439 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:57,440 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:57,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2023-11-23 21:13:00,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:13:00,821 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:13:00,822 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2023-11-23 21:13:00,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/data/a7e9d531e/1c595269328e470b8431a326ef5b5623/FLAG11ce0fab6 [2023-11-23 21:13:00,864 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/data/a7e9d531e/1c595269328e470b8431a326ef5b5623 [2023-11-23 21:13:00,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:13:00,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:13:00,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:13:00,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:13:00,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:13:00,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:13:00" (1/1) ... [2023-11-23 21:13:00,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c5cd54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:00, skipping insertion in model container [2023-11-23 21:13:00,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:13:00" (1/1) ... [2023-11-23 21:13:00,917 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:13:01,072 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_f318aeaa-21cf-48f7-b36b-6cea1c07996e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i[917,930] [2023-11-23 21:13:01,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:13:01,171 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:13:01,184 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_f318aeaa-21cf-48f7-b36b-6cea1c07996e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i[917,930] [2023-11-23 21:13:01,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:13:01,273 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:13:01,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01 WrapperNode [2023-11-23 21:13:01,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:13:01,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:13:01,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:13:01,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:13:01,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,361 INFO L138 Inliner]: procedures = 29, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 390 [2023-11-23 21:13:01,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:13:01,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:13:01,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:13:01,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:13:01,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:13:01,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:13:01,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:13:01,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:13:01,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (1/1) ... [2023-11-23 21:13:01,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:13:01,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:13:01,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:13:01,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:13:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:13:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 21:13:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:13:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 21:13:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:13:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-23 21:13:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:13:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:13:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:13:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:13:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:13:01,705 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:13:01,708 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:13:02,402 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:13:03,052 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:13:03,052 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:13:03,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:03 BoogieIcfgContainer [2023-11-23 21:13:03,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:13:03,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:13:03,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:13:03,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:13:03,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:13:00" (1/3) ... [2023-11-23 21:13:03,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d15d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:13:03, skipping insertion in model container [2023-11-23 21:13:03,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:01" (2/3) ... [2023-11-23 21:13:03,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d15d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:13:03, skipping insertion in model container [2023-11-23 21:13:03,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:03" (3/3) ... [2023-11-23 21:13:03,072 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-84.i [2023-11-23 21:13:03,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:13:03,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:13:03,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:13:03,192 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;@7cbf1d24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:13:03,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:13:03,198 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) [2023-11-23 21:13:03,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:13:03,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:13:03,214 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] [2023-11-23 21:13:03,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:13:03,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:13:03,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2068635002, now seen corresponding path program 1 times [2023-11-23 21:13:03,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:13:03,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29976409] [2023-11-23 21:13:03,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:13:03,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:13:03,638 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:13:03,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611932236] [2023-11-23 21:13:03,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:13:03,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:13:03,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:13:03,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:13:03,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f318aeaa-21cf-48f7-b36b-6cea1c07996e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:13:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:13:06,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 202 conjunts are in the unsatisfiable core [2023-11-23 21:13:06,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:13:08,005 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 46 treesize of output 36 [2023-11-23 21:13:11,118 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 55 treesize of output 48 [2023-11-23 21:13:14,318 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 64 treesize of output 60 [2023-11-23 21:13:17,720 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 73 treesize of output 72 [2023-11-23 21:13:20,650 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 82 treesize of output 84 [2023-11-23 21:13:22,868 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 82 treesize of output 84 [2023-11-23 21:13:27,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 94 [2023-11-23 21:13:30,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 103 [2023-11-23 21:13:36,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 120 [2023-11-23 21:13:41,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 133 [2023-11-23 21:13:46,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 375 treesize of output 329 [2023-11-23 21:13:46,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:13:46,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:13:46,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:13:46,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:13:46,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:13:46,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:13:46,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:13:46,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:13:46,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:13:47,331 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-23 21:13:47,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 54 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 1 case distinctions, treesize of input 334 treesize of output 338 [2023-11-23 21:13:47,849 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