./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c --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_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/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_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/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_e7186146-9ffd-4645-ae71-9dcb03253ac1/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 10491a2ba1c0af8edd609b5028b1f925d0288ec6e0b405ba8250552a6ddb6463 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:52:05,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:52:06,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:52:06,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:52:06,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:52:06,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:52:06,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:52:06,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:52:06,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:52:06,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:52:06,150 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:52:06,151 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:52:06,151 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:52:06,153 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:52:06,153 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:52:06,154 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:52:06,154 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:52:06,155 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:52:06,155 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:52:06,155 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:52:06,156 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:52:06,156 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:52:06,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:52:06,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:52:06,158 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:52:06,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:52:06,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:52:06,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:52:06,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:52:06,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:52:06,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:52:06,162 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:52:06,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:52:06,163 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:52:06,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:52:06,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:52:06,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:06,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:52:06,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:52:06,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:52:06,164 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:52:06,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:52:06,165 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:52:06,165 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:52:06,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:52:06,166 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_e7186146-9ffd-4645-ae71-9dcb03253ac1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10491a2ba1c0af8edd609b5028b1f925d0288ec6e0b405ba8250552a6ddb6463 [2023-11-19 04:52:06,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:52:06,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:52:06,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:52:06,539 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:52:06,540 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:52:06,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c [2023-11-19 04:52:09,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:52:09,796 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:52:09,797 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/sv-benchmarks/c/loop-industry-pattern/aiob_4.c [2023-11-19 04:52:09,807 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/data/b9c17cb7c/0f87b39d07c3474eb41a59fbdef5811e/FLAG5b94b2c33 [2023-11-19 04:52:09,824 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/data/b9c17cb7c/0f87b39d07c3474eb41a59fbdef5811e [2023-11-19 04:52:09,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:52:09,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:52:09,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:09,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:52:09,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:52:09,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:09" (1/1) ... [2023-11-19 04:52:09,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a7ddaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:09, skipping insertion in model container [2023-11-19 04:52:09,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:09" (1/1) ... [2023-11-19 04:52:09,923 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:52:10,235 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_e7186146-9ffd-4645-ae71-9dcb03253ac1/sv-benchmarks/c/loop-industry-pattern/aiob_4.c[7328,7341] [2023-11-19 04:52:10,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:10,253 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:52:10,319 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_e7186146-9ffd-4645-ae71-9dcb03253ac1/sv-benchmarks/c/loop-industry-pattern/aiob_4.c[7328,7341] [2023-11-19 04:52:10,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:10,328 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:10,339 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:52:10,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10 WrapperNode [2023-11-19 04:52:10,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:10,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:10,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:52:10,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:52:10,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,428 INFO L138 Inliner]: procedures = 17, calls = 195, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 330 [2023-11-19 04:52:10,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:10,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:52:10,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:52:10,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:52:10,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:52:10,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:52:10,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:52:10,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:52:10,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (1/1) ... [2023-11-19 04:52:10,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:10,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:10,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:52:10,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:52:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:52:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 04:52:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:52:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:52:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:52:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:52:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:52:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:52:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:52:10,768 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:52:10,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:52:11,688 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:52:11,721 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:52:11,722 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:52:11,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:11 BoogieIcfgContainer [2023-11-19 04:52:11,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:52:11,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:52:11,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:52:11,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:52:11,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:52:09" (1/3) ... [2023-11-19 04:52:11,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5948de8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:11, skipping insertion in model container [2023-11-19 04:52:11,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:10" (2/3) ... [2023-11-19 04:52:11,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5948de8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:11, skipping insertion in model container [2023-11-19 04:52:11,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:11" (3/3) ... [2023-11-19 04:52:11,742 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4.c [2023-11-19 04:52:11,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:52:11,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:52:11,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:52:11,835 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;@73b7c52f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:52:11,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:52:11,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:11,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:52:11,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:11,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 04:52:11,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:11,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:11,851 INFO L85 PathProgramCache]: Analyzing trace with hash 64867021, now seen corresponding path program 1 times [2023-11-19 04:52:11,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:11,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314658254] [2023-11-19 04:52:11,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:11,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:12,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:12,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314658254] [2023-11-19 04:52:12,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314658254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:12,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:12,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:52:12,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818901310] [2023-11-19 04:52:12,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:12,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:52:12,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:12,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:52:12,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:12,973 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:13,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:13,024 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2023-11-19 04:52:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:52:13,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 04:52:13,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:13,034 INFO L225 Difference]: With dead ends: 25 [2023-11-19 04:52:13,034 INFO L226 Difference]: Without dead ends: 12 [2023-11-19 04:52:13,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:13,040 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:13,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 16 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:13,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-19 04:52:13,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2023-11-19 04:52:13,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-11-19 04:52:13,071 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2023-11-19 04:52:13,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:13,072 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-11-19 04:52:13,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-11-19 04:52:13,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:52:13,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:13,073 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:13,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:52:13,074 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:13,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:13,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1789376, now seen corresponding path program 1 times [2023-11-19 04:52:13,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:13,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657800055] [2023-11-19 04:52:13,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:13,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:13,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:13,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:13,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657800055] [2023-11-19 04:52:13,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657800055] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:52:13,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735904467] [2023-11-19 04:52:13,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:13,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:52:13,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:13,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:52:13,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:52:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:14,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:52:14,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:52:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:14,439 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:52:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:14,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735904467] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:52:14,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [327737329] [2023-11-19 04:52:14,532 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-19 04:52:14,532 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:52:14,535 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:52:14,539 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:52:14,539 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:52:20,196 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 04:52:20,830 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '116#(and (= |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_88#1.offset| 0) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~Id_MCDC_116~0#1| 0) (<= 0 ~Id_MCDC_93~0) (= |ULTIMATE.start___VERIFIER_assert_~Id_MCDC_92#1| 0) (<= 2 |ULTIMATE.start_Id_MCDC_89_~#Id_MCDC_95~0#1.base|) (= |ULTIMATE.start_Id_MCDC_89_#in~Id_MCDC_88#1.offset| 0) (= |ULTIMATE.start_Id_MCDC_89_~#Id_MCDC_95~0#1.offset| 0) (= |ULTIMATE.start_main_~Id_MCDC_115~0#1| 0) (= 0 |ULTIMATE.start_main_~#Id_MCDC_119~0#1.offset|) (<= 2 |ULTIMATE.start_Id_MCDC_89_#in~Id_MCDC_88#1.base|) (<= 2 |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_88#1.base|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~Id_MCDC_92#1|) (<= 2 |ULTIMATE.start_main_~#Id_MCDC_119~0#1.base|) (<= 0 |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_96~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~Id_MCDC_92#1| 1))' at error location [2023-11-19 04:52:20,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 04:52:20,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 04:52:20,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-11-19 04:52:20,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744890185] [2023-11-19 04:52:20,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 04:52:20,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:52:20,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:20,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:52:20,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-19 04:52:20,838 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:20,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:20,995 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2023-11-19 04:52:20,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 04:52:20,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 04:52:20,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:20,997 INFO L225 Difference]: With dead ends: 26 [2023-11-19 04:52:20,997 INFO L226 Difference]: Without dead ends: 24 [2023-11-19 04:52:20,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-11-19 04:52:20,999 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:21,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 18 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:52:21,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-19 04:52:21,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2023-11-19 04:52:21,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:21,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2023-11-19 04:52:21,009 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2023-11-19 04:52:21,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:21,010 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2023-11-19 04:52:21,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:21,010 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2023-11-19 04:52:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:52:21,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:21,013 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1] [2023-11-19 04:52:21,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:52:21,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 04:52:21,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:21,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:21,229 INFO L85 PathProgramCache]: Analyzing trace with hash 807579033, now seen corresponding path program 2 times [2023-11-19 04:52:21,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:21,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121106159] [2023-11-19 04:52:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:21,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:21,904 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:21,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:21,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121106159] [2023-11-19 04:52:21,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121106159] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:52:21,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670022544] [2023-11-19 04:52:21,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 04:52:21,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:52:21,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:21,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:52:21,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 04:52:22,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-19 04:52:22,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 04:52:22,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-19 04:52:22,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:52:22,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:52:22,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2023-11-19 04:52:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 04:52:22,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:52:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 04:52:23,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670022544] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:52:23,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [880129370] [2023-11-19 04:52:23,724 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-19 04:52:23,724 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:52:23,725 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:52:23,725 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:52:23,725 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:52:26,710 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 04:52:27,645 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '333#(and (= |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_88#1.offset| 0) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~Id_MCDC_116~0#1| 0) (= ~Id_MCDC_93~0 |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_96~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~Id_MCDC_92#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~Id_MCDC_92#1| 0) (<= 2 |ULTIMATE.start_Id_MCDC_89_~#Id_MCDC_95~0#1.base|) (= |ULTIMATE.start_Id_MCDC_89_#in~Id_MCDC_88#1.offset| 0) (= |ULTIMATE.start_Id_MCDC_89_~#Id_MCDC_95~0#1.offset| 0) (exists ((v_~Id_MCDC_93~0_21 Int)) (or (and (<= (mod v_~Id_MCDC_93~0_21 4294967296) 41) (not (= (mod (select (select |#memory_int| |ULTIMATE.start_Id_MCDC_89_~#Id_MCDC_95~0#1.base|) (* (mod v_~Id_MCDC_93~0_21 4294967296) 12)) 4294967296) 0)) (= (+ v_~Id_MCDC_93~0_21 1) |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_96~0#1|)) (= v_~Id_MCDC_93~0_21 0))) (= |ULTIMATE.start_main_~Id_MCDC_115~0#1| 0) (= 0 |ULTIMATE.start_main_~#Id_MCDC_119~0#1.offset|) (<= 2 |ULTIMATE.start_Id_MCDC_89_#in~Id_MCDC_88#1.base|) (<= 2 |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_88#1.base|) (<= 2 |ULTIMATE.start_main_~#Id_MCDC_119~0#1.base|) (<= 0 |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_96~0#1|) (<= 42 (mod ~Id_MCDC_93~0 4294967296)))' at error location [2023-11-19 04:52:27,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 04:52:27,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 04:52:27,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 23 [2023-11-19 04:52:27,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964183748] [2023-11-19 04:52:27,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 04:52:27,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-19 04:52:27,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:27,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-19 04:52:27,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2023-11-19 04:52:27,649 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 23 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:28,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:28,494 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-11-19 04:52:28,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 04:52:28,496 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-19 04:52:28,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:28,497 INFO L225 Difference]: With dead ends: 31 [2023-11-19 04:52:28,497 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:52:28,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=469, Invalid=1787, Unknown=0, NotChecked=0, Total=2256 [2023-11-19 04:52:28,500 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 49 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:28,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:52:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:52:28,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:52:28,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:28,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:52:28,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2023-11-19 04:52:28,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:28,503 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:52:28,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:28,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:52:28,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:52:28,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:52:28,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:52:28,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:52:28,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:52:28,793 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:52:28,793 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2023-11-19 04:52:28,793 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 183) no Hoare annotation was computed. [2023-11-19 04:52:28,793 INFO L899 garLoopResultBuilder]: For program point L180-2(lines 178 185) no Hoare annotation was computed. [2023-11-19 04:52:28,793 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 177) no Hoare annotation was computed. [2023-11-19 04:52:28,794 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:52:28,794 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2023-11-19 04:52:28,794 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 174) no Hoare annotation was computed. [2023-11-19 04:52:28,794 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 138 141) no Hoare annotation was computed. [2023-11-19 04:52:28,794 INFO L895 garLoopResultBuilder]: At program point L138-3(lines 138 141) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_Id_MCDC_89_~#Id_MCDC_95~0#1.offset| 0)) (.cse1 (= (select (select |#memory_int| |ULTIMATE.start_Id_MCDC_89_~#Id_MCDC_95~0#1.base|) 492) 0))) (or (and (= |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_96~0#1| 0) .cse0 .cse1) (let ((.cse2 (mod (+ 4294967295 |ULTIMATE.start_Id_MCDC_89_~Id_MCDC_96~0#1|) 4294967296))) (and (not (= 41 .cse2)) .cse0 (<= .cse2 41) .cse1)))) [2023-11-19 04:52:28,794 INFO L899 garLoopResultBuilder]: For program point L138-4(lines 138 141) no Hoare annotation was computed. [2023-11-19 04:52:28,798 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-19 04:52:28,800 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:52:28,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#Id_MCDC_95~0!base][492] could not be translated [2023-11-19 04:52:28,813 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#Id_MCDC_95~0!base][492] could not be translated [2023-11-19 04:52:28,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:52:28 BoogieIcfgContainer [2023-11-19 04:52:28,815 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:52:28,815 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:52:28,815 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:52:28,816 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:52:28,817 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:11" (3/4) ... [2023-11-19 04:52:28,820 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:52:28,833 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 04:52:28,834 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 04:52:28,834 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 04:52:28,835 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:52:28,836 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:52:29,042 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:52:29,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:52:29,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:52:29,044 INFO L158 Benchmark]: Toolchain (without parser) took 19215.20ms. Allocated memory was 174.1MB in the beginning and 943.7MB in the end (delta: 769.7MB). Free memory was 134.7MB in the beginning and 708.9MB in the end (delta: -574.2MB). Peak memory consumption was 194.8MB. Max. memory is 16.1GB. [2023-11-19 04:52:29,044 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:52:29,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.15ms. Allocated memory is still 174.1MB. Free memory was 134.7MB in the beginning and 131.7MB in the end (delta: 3.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 04:52:29,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.20ms. Allocated memory is still 174.1MB. Free memory was 131.7MB in the beginning and 128.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:52:29,045 INFO L158 Benchmark]: Boogie Preprocessor took 57.37ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 125.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:52:29,045 INFO L158 Benchmark]: RCFGBuilder took 1240.41ms. Allocated memory is still 174.1MB. Free memory was 124.9MB in the beginning and 72.5MB in the end (delta: 52.5MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-19 04:52:29,045 INFO L158 Benchmark]: TraceAbstraction took 17084.02ms. Allocated memory was 174.1MB in the beginning and 943.7MB in the end (delta: 769.7MB). Free memory was 71.6MB in the beginning and 723.6MB in the end (delta: -652.0MB). Peak memory consumption was 118.5MB. Max. memory is 16.1GB. [2023-11-19 04:52:29,046 INFO L158 Benchmark]: Witness Printer took 227.73ms. Allocated memory is still 943.7MB. Free memory was 723.6MB in the beginning and 708.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:52:29,048 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.15ms. Allocated memory is still 174.1MB. Free memory was 134.7MB in the beginning and 131.7MB in the end (delta: 3.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.20ms. Allocated memory is still 174.1MB. Free memory was 131.7MB in the beginning and 128.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.37ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 125.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1240.41ms. Allocated memory is still 174.1MB. Free memory was 124.9MB in the beginning and 72.5MB in the end (delta: 52.5MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 17084.02ms. Allocated memory was 174.1MB in the beginning and 943.7MB in the end (delta: 769.7MB). Free memory was 71.6MB in the beginning and 723.6MB in the end (delta: -652.0MB). Peak memory consumption was 118.5MB. Max. memory is 16.1GB. * Witness Printer took 227.73ms. Allocated memory is still 943.7MB. Free memory was 723.6MB in the beginning and 708.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#Id_MCDC_95~0!base][492] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#Id_MCDC_95~0!base][492] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 182]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.0s, OverallIterations: 3, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 12 mSDtfsCounter, 220 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=2, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 8 NumberOfFragments, 41 HoareAnnotationTreeSize, 1 FomulaSimplifications, 17 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 138 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 65 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 88 ConstructedInterpolants, 13 QuantifiedInterpolants, 1018 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1074 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 30/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((Id_MCDC_96 == 0) || (!((41 == ((4294967295 + Id_MCDC_96) % 4294967296))) && (((4294967295 + Id_MCDC_96) % 4294967296) <= 41))) RESULT: Ultimate proved your program to be correct! [2023-11-19 04:52:29,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7186146-9ffd-4645-ae71-9dcb03253ac1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE