./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --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 9ce92743863c5d30c478a48a973506d73113681a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:47:13,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:47:13,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:47:13,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:47:13,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:47:13,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:47:13,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:47:13,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:47:13,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:47:13,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:47:13,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:47:13,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:47:13,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:47:13,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:47:13,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:47:13,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:47:13,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:47:13,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:47:13,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:47:13,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:47:13,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:47:13,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:47:13,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:47:13,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:47:13,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:47:13,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:47:13,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:47:13,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:47:13,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:47:13,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:47:13,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:47:13,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:47:13,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:47:13,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:47:13,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:47:13,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:47:14,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:47:14,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:47:14,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:47:14,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:47:14,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:47:14,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:47:14,045 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:47:14,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:47:14,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:47:14,047 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:47:14,047 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:47:14,047 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:47:14,048 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:47:14,048 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:47:14,048 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:47:14,048 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:47:14,049 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:47:14,050 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:47:14,050 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:47:14,050 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:47:14,050 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:47:14,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:47:14,052 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:47:14,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:47:14,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:47:14,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:47:14,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:47:14,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:47:14,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:47:14,053 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:47:14,053 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:47:14,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:47:14,054 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:47:14,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:47:14,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:47:14,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:47:14,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:47:14,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:47:14,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:47:14,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:47:14,056 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:47:14,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:47:14,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:47:14,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:47:14,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:47:14,057 INFO L138 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_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ce92743863c5d30c478a48a973506d73113681a [2021-10-13 07:47:14,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:47:14,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:47:14,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:47:14,394 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:47:14,395 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:47:14,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2021-10-13 07:47:14,466 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/data/b9f7e680e/b128c4cfa6694198be7c8e09141951e9/FLAG562c9b512 [2021-10-13 07:47:14,994 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:47:14,994 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2021-10-13 07:47:15,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/data/b9f7e680e/b128c4cfa6694198be7c8e09141951e9/FLAG562c9b512 [2021-10-13 07:47:15,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/data/b9f7e680e/b128c4cfa6694198be7c8e09141951e9 [2021-10-13 07:47:15,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:47:15,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:47:15,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:47:15,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:47:15,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:47:15,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16107dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15, skipping insertion in model container [2021-10-13 07:47:15,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:47:15,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:47:15,584 WARN L228 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_918419d8-456f-4773-8271-a100375ff3f6/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[335,348] [2021-10-13 07:47:15,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:47:15,669 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:47:15,680 WARN L228 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_918419d8-456f-4773-8271-a100375ff3f6/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[335,348] [2021-10-13 07:47:15,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:47:15,731 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:47:15,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15 WrapperNode [2021-10-13 07:47:15,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:47:15,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:47:15,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:47:15,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:47:15,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:47:15,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:47:15,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:47:15,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:47:15,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:47:15,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:47:15,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:47:15,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:47:15,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (1/1) ... [2021-10-13 07:47:15,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:47:15,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:47:15,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:47:15,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:47:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:47:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:47:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:47:16,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:47:16,576 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##104: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0; [2021-10-13 07:47:16,576 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume !(1 == ~q_free~0); [2021-10-13 07:47:17,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:47:17,166 INFO L299 CfgBuilder]: Removed 70 assume(true) statements. [2021-10-13 07:47:17,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:47:17 BoogieIcfgContainer [2021-10-13 07:47:17,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:47:17,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:47:17,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:47:17,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:47:17,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:47:15" (1/3) ... [2021-10-13 07:47:17,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7961e731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:47:17, skipping insertion in model container [2021-10-13 07:47:17,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:47:15" (2/3) ... [2021-10-13 07:47:17,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7961e731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:47:17, skipping insertion in model container [2021-10-13 07:47:17,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:47:17" (3/3) ... [2021-10-13 07:47:17,181 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2021-10-13 07:47:17,197 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:47:17,197 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 07:47:17,293 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:47:17,300 INFO L339 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:47:17,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-13 07:47:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 62 states have (on average 1.6935483870967742) internal successors, (105), 64 states have internal predecessors, (105), 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) [2021-10-13 07:47:17,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:47:17,324 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:47:17,325 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:47:17,325 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:47:17,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:47:17,331 INFO L82 PathProgramCache]: Analyzing trace with hash -773239664, now seen corresponding path program 1 times [2021-10-13 07:47:17,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:47:17,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984786228] [2021-10-13 07:47:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:47:17,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:47:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:47:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:47:17,511 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:47:17,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984786228] [2021-10-13 07:47:17,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984786228] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:47:17,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:47:17,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:47:17,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36175304] [2021-10-13 07:47:17,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:47:17,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:47:17,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:47:17,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:47:17,545 INFO L87 Difference]: Start difference. First operand has 65 states, 62 states have (on average 1.6935483870967742) internal successors, (105), 64 states have internal predecessors, (105), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 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) [2021-10-13 07:47:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:47:17,668 INFO L93 Difference]: Finished difference Result 170 states and 272 transitions. [2021-10-13 07:47:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:47:17,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 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 17 [2021-10-13 07:47:17,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:47:17,686 INFO L225 Difference]: With dead ends: 170 [2021-10-13 07:47:17,686 INFO L226 Difference]: Without dead ends: 103 [2021-10-13 07:47:17,690 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:47:17,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-13 07:47:17,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2021-10-13 07:47:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 96 states have (on average 1.5416666666666667) internal successors, (148), 97 states have internal predecessors, (148), 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) [2021-10-13 07:47:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 148 transitions. [2021-10-13 07:47:17,744 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 148 transitions. Word has length 17 [2021-10-13 07:47:17,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:47:17,744 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 148 transitions. [2021-10-13 07:47:17,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 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) [2021-10-13 07:47:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 148 transitions. [2021-10-13 07:47:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:47:17,746 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:47:17,746 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:47:17,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:47:17,746 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:47:17,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:47:17,747 INFO L82 PathProgramCache]: Analyzing trace with hash 660316225, now seen corresponding path program 1 times [2021-10-13 07:47:17,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:47:17,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258466167] [2021-10-13 07:47:17,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:47:17,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:47:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:47:17,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:47:17,796 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:47:17,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258466167] [2021-10-13 07:47:17,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258466167] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:47:17,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:47:17,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:47:17,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930845811] [2021-10-13 07:47:17,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:47:17,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:47:17,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:47:17,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:47:17,800 INFO L87 Difference]: Start difference. First operand 98 states and 148 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-13 07:47:17,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:47:17,916 INFO L93 Difference]: Finished difference Result 300 states and 448 transitions. [2021-10-13 07:47:17,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:47:17,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-10-13 07:47:17,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:47:17,920 INFO L225 Difference]: With dead ends: 300 [2021-10-13 07:47:17,920 INFO L226 Difference]: Without dead ends: 208 [2021-10-13 07:47:17,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:47:17,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-13 07:47:17,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 162. [2021-10-13 07:47:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.4875) internal successors, (238), 161 states have internal predecessors, (238), 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) [2021-10-13 07:47:17,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 238 transitions. [2021-10-13 07:47:17,942 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 238 transitions. Word has length 18 [2021-10-13 07:47:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:47:17,943 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 238 transitions. [2021-10-13 07:47:17,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-13 07:47:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 238 transitions. [2021-10-13 07:47:17,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:47:17,961 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:47:17,961 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:47:17,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:47:17,963 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:47:17,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:47:17,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1296351071, now seen corresponding path program 1 times [2021-10-13 07:47:17,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:47:17,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627419633] [2021-10-13 07:47:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:47:17,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:47:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:47:18,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:47:18,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:47:18,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627419633] [2021-10-13 07:47:18,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627419633] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:47:18,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:47:18,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:47:18,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845875741] [2021-10-13 07:47:18,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:47:18,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:47:18,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:47:18,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:47:18,019 INFO L87 Difference]: Start difference. First operand 162 states and 238 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-13 07:47:18,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:47:18,128 INFO L93 Difference]: Finished difference Result 336 states and 490 transitions. [2021-10-13 07:47:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:47:18,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-13 07:47:18,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:47:18,129 INFO L225 Difference]: With dead ends: 336 [2021-10-13 07:47:18,129 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:47:18,135 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:47:18,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:47:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:47:18,135 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) [2021-10-13 07:47:18,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:47:18,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-10-13 07:47:18,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:47:18,136 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:47:18,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-13 07:47:18,137 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:47:18,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:47:18,149 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:47:18,149 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:47:18,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:47:18,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:47:18,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:47:18,280 INFO L857 garLoopResultBuilder]: For program point L68-3(lines 68 77) no Hoare annotation was computed. [2021-10-13 07:47:18,280 INFO L857 garLoopResultBuilder]: For program point L68-5(lines 68 77) no Hoare annotation was computed. [2021-10-13 07:47:18,280 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-13 07:47:18,281 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 74) no Hoare annotation was computed. [2021-10-13 07:47:18,281 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 69 74) no Hoare annotation was computed. [2021-10-13 07:47:18,281 INFO L857 garLoopResultBuilder]: For program point L69-2(lines 69 74) no Hoare annotation was computed. [2021-10-13 07:47:18,281 INFO L853 garLoopResultBuilder]: At program point L502(lines 502 511) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,281 INFO L853 garLoopResultBuilder]: At program point L502-1(lines 502 511) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,282 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 153) no Hoare annotation was computed. [2021-10-13 07:47:18,282 INFO L853 garLoopResultBuilder]: At program point L108(lines 86 110) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~c_dr_pc~0 ~p_dw_pc~0)) [2021-10-13 07:47:18,282 INFO L853 garLoopResultBuilder]: At program point L108-1(lines 86 110) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,282 INFO L853 garLoopResultBuilder]: At program point L108-2(lines 86 110) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,282 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 411) no Hoare annotation was computed. [2021-10-13 07:47:18,283 INFO L857 garLoopResultBuilder]: For program point L407-1(lines 402 442) no Hoare annotation was computed. [2021-10-13 07:47:18,283 INFO L857 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2021-10-13 07:47:18,283 INFO L857 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-10-13 07:47:18,283 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 152) no Hoare annotation was computed. [2021-10-13 07:47:18,283 INFO L853 garLoopResultBuilder]: At program point L12-1(lines 190 244) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,284 INFO L853 garLoopResultBuilder]: At program point L145(lines 140 184) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,284 INFO L853 garLoopResultBuilder]: At program point L79(lines 57 81) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~c_dr_pc~0 ~p_dw_pc~0)) [2021-10-13 07:47:18,284 INFO L853 garLoopResultBuilder]: At program point L79-1(lines 57 81) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,284 INFO L853 garLoopResultBuilder]: At program point L79-2(lines 57 81) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,284 INFO L853 garLoopResultBuilder]: At program point L443(lines 396 448) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,285 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 151) no Hoare annotation was computed. [2021-10-13 07:47:18,285 INFO L853 garLoopResultBuilder]: At program point L412(lines 402 442) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,285 INFO L857 garLoopResultBuilder]: For program point L515(lines 515 519) no Hoare annotation was computed. [2021-10-13 07:47:18,285 INFO L857 garLoopResultBuilder]: For program point L416(lines 416 423) no Hoare annotation was computed. [2021-10-13 07:47:18,285 INFO L860 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-10-13 07:47:18,285 INFO L853 garLoopResultBuilder]: At program point L483-1(lines 317 520) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,286 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 96) no Hoare annotation was computed. [2021-10-13 07:47:18,286 INFO L857 garLoopResultBuilder]: For program point L87-2(lines 86 110) no Hoare annotation was computed. [2021-10-13 07:47:18,286 INFO L857 garLoopResultBuilder]: For program point L87-3(lines 87 96) no Hoare annotation was computed. [2021-10-13 07:47:18,286 INFO L857 garLoopResultBuilder]: For program point L87-5(lines 86 110) no Hoare annotation was computed. [2021-10-13 07:47:18,286 INFO L857 garLoopResultBuilder]: For program point L87-6(lines 87 96) no Hoare annotation was computed. [2021-10-13 07:47:18,286 INFO L857 garLoopResultBuilder]: For program point L87-8(lines 86 110) no Hoare annotation was computed. [2021-10-13 07:47:18,287 INFO L857 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-10-13 07:47:18,287 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 88 93) no Hoare annotation was computed. [2021-10-13 07:47:18,287 INFO L857 garLoopResultBuilder]: For program point L88-2(lines 88 93) no Hoare annotation was computed. [2021-10-13 07:47:18,287 INFO L853 garLoopResultBuilder]: At program point L156-1(lines 140 184) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,287 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:47:18,287 INFO L857 garLoopResultBuilder]: For program point L58(lines 58 67) no Hoare annotation was computed. [2021-10-13 07:47:18,288 INFO L857 garLoopResultBuilder]: For program point L58-2(lines 57 81) no Hoare annotation was computed. [2021-10-13 07:47:18,288 INFO L857 garLoopResultBuilder]: For program point L58-3(lines 58 67) no Hoare annotation was computed. [2021-10-13 07:47:18,288 INFO L857 garLoopResultBuilder]: For program point L58-5(lines 57 81) no Hoare annotation was computed. [2021-10-13 07:47:18,288 INFO L857 garLoopResultBuilder]: For program point L58-6(lines 58 67) no Hoare annotation was computed. [2021-10-13 07:47:18,288 INFO L857 garLoopResultBuilder]: For program point L58-8(lines 57 81) no Hoare annotation was computed. [2021-10-13 07:47:18,288 INFO L860 garLoopResultBuilder]: At program point L521(lines 468 526) the Hoare annotation is: true [2021-10-13 07:47:18,289 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 199) no Hoare annotation was computed. [2021-10-13 07:47:18,289 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 64) no Hoare annotation was computed. [2021-10-13 07:47:18,289 INFO L857 garLoopResultBuilder]: For program point L59-1(lines 59 64) no Hoare annotation was computed. [2021-10-13 07:47:18,289 INFO L857 garLoopResultBuilder]: For program point L59-2(lines 59 64) no Hoare annotation was computed. [2021-10-13 07:47:18,289 INFO L857 garLoopResultBuilder]: For program point L226(lines 226 238) no Hoare annotation was computed. [2021-10-13 07:47:18,289 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 233) no Hoare annotation was computed. [2021-10-13 07:47:18,290 INFO L853 garLoopResultBuilder]: At program point L194(lines 194 198) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,290 INFO L853 garLoopResultBuilder]: At program point L427(lines 402 442) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,290 INFO L853 garLoopResultBuilder]: At program point L163(lines 140 184) the Hoare annotation is: (not (= ~c_dr_pc~0 2)) [2021-10-13 07:47:18,290 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 97 106) no Hoare annotation was computed. [2021-10-13 07:47:18,290 INFO L857 garLoopResultBuilder]: For program point L97-3(lines 97 106) no Hoare annotation was computed. [2021-10-13 07:47:18,291 INFO L857 garLoopResultBuilder]: For program point L97-5(lines 97 106) no Hoare annotation was computed. [2021-10-13 07:47:18,291 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 103) no Hoare annotation was computed. [2021-10-13 07:47:18,291 INFO L857 garLoopResultBuilder]: For program point L98-1(lines 98 103) no Hoare annotation was computed. [2021-10-13 07:47:18,291 INFO L857 garLoopResultBuilder]: For program point L98-2(lines 98 103) no Hoare annotation was computed. [2021-10-13 07:47:18,291 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-13 07:47:18,291 INFO L857 garLoopResultBuilder]: For program point L431(lines 431 438) no Hoare annotation was computed. [2021-10-13 07:47:18,292 INFO L857 garLoopResultBuilder]: For program point L68-1(lines 68 77) no Hoare annotation was computed. [2021-10-13 07:47:18,296 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:47:18,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:47:18 BoogieIcfgContainer [2021-10-13 07:47:18,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:47:18,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:47:18,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:47:18,311 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:47:18,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:47:17" (3/4) ... [2021-10-13 07:47:18,314 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:47:18,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2021-10-13 07:47:18,333 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-13 07:47:18,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:47:18,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:47:18,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:47:18,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:47:18,476 INFO L168 Benchmark]: Toolchain (without parser) took 3102.66 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.4 MB in the beginning and 50.5 MB in the end (delta: -126.5 kB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:47:18,476 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory is still 67.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:47:18,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.29 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 80.1 MB in the end (delta: -29.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:47:18,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.14 ms. Allocated memory is still 107.0 MB. Free memory was 79.9 MB in the beginning and 77.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:47:18,478 INFO L168 Benchmark]: Boogie Preprocessor took 80.41 ms. Allocated memory is still 107.0 MB. Free memory was 77.5 MB in the beginning and 75.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:47:18,478 INFO L168 Benchmark]: RCFGBuilder took 1286.03 ms. Allocated memory is still 107.0 MB. Free memory was 75.4 MB in the beginning and 54.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:47:18,478 INFO L168 Benchmark]: TraceAbstraction took 1138.48 ms. Allocated memory is still 107.0 MB. Free memory was 54.2 MB in the beginning and 58.9 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:47:18,479 INFO L168 Benchmark]: Witness Printer took 163.32 ms. Allocated memory is still 107.0 MB. Free memory was 58.9 MB in the beginning and 50.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:47:18,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory is still 67.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.29 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 80.1 MB in the end (delta: -29.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.14 ms. Allocated memory is still 107.0 MB. Free memory was 79.9 MB in the beginning and 77.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.41 ms. Allocated memory is still 107.0 MB. Free memory was 77.5 MB in the beginning and 75.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1286.03 ms. Allocated memory is still 107.0 MB. Free memory was 75.4 MB in the beginning and 54.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1138.48 ms. Allocated memory is still 107.0 MB. Free memory was 54.2 MB in the beginning and 58.9 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 163.32 ms. Allocated memory is still 107.0 MB. Free memory was 58.9 MB in the beginning and 50.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1004.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 13.3ms, AutomataDifference: 406.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 129.7ms, InitialAbstractionConstructionTime: 12.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 214 SDtfs, 413 SDslu, 224 SDs, 0 SdLazy, 127 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 139.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 60.7ms AutomataMinimizationTime, 3 MinimizatonAttempts, 51 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 19 LocationsWithAnnotation, 19 PreInvPairs, 86 NumberOfFragments, 76 HoareAnnotationTreeSize, 19 FomulaSimplifications, 890 FormulaSimplificationTreeSizeReduction, 89.2ms HoareSimplificationTime, 19 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 31.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 12.4ms SsaConstructionTime, 57.2ms SatisfiabilityAnalysisTime, 127.1ms InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 2 specifications checked. All of them hold - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: p_dw_pc == 0 && c_dr_pc == p_dw_pc - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: p_dw_pc == 0 && c_dr_pc == p_dw_pc - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 468]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 396]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: !(c_dr_pc == 2) RESULT: Ultimate proved your program to be correct! [2021-10-13 07:47:18,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918419d8-456f-4773-8271-a100375ff3f6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...