./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label18.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_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/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_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/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_7b765f28-cc59-4d5d-a016-35f23f0d323d/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 dc863406f6436892e411d421aa2656d04e66128b .................................................................................................................................................................................................................................................................................................................................................. 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 06:50:04,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:50:04,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:50:05,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:50:05,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:50:05,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:50:05,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:50:05,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:50:05,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:50:05,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:50:05,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:50:05,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:50:05,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:50:05,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:50:05,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:50:05,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:50:05,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:50:05,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:50:05,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:50:05,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:50:05,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:50:05,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:50:05,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:50:05,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:50:05,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:50:05,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:50:05,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:50:05,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:50:05,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:50:05,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:50:05,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:50:05,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:50:05,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:50:05,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:50:05,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:50:05,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:50:05,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:50:05,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:50:05,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:50:05,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:50:05,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:50:05,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:50:05,145 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:50:05,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:50:05,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:50:05,147 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:50:05,147 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:50:05,147 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:50:05,148 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:50:05,148 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:50:05,148 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:50:05,149 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:50:05,149 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:50:05,149 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:50:05,150 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:50:05,150 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:50:05,150 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:50:05,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:50:05,151 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:50:05,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:50:05,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:50:05,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:50:05,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:50:05,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:50:05,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:50:05,154 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:50:05,154 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:50:05,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:50:05,155 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:50:05,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:50:05,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:50:05,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:50:05,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:50:05,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:50:05,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:50:05,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:50:05,157 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:50:05,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:50:05,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:50:05,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:50:05,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:50:05,159 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_7b765f28-cc59-4d5d-a016-35f23f0d323d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc863406f6436892e411d421aa2656d04e66128b [2021-10-13 06:50:05,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:50:05,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:50:05,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:50:05,526 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:50:05,527 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:50:05,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem10_label18.c [2021-10-13 06:50:05,658 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/data/e470a08b3/72d3343b78884c398eeec8227de86208/FLAG4b4b7f750 [2021-10-13 06:50:06,326 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:50:06,327 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/sv-benchmarks/c/eca-rers2012/Problem10_label18.c [2021-10-13 06:50:06,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/data/e470a08b3/72d3343b78884c398eeec8227de86208/FLAG4b4b7f750 [2021-10-13 06:50:06,581 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/data/e470a08b3/72d3343b78884c398eeec8227de86208 [2021-10-13 06:50:06,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:50:06,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:50:06,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:50:06,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:50:06,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:50:06,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:50:06" (1/1) ... [2021-10-13 06:50:06,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb66c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:06, skipping insertion in model container [2021-10-13 06:50:06,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:50:06" (1/1) ... [2021-10-13 06:50:06,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:50:06,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:50:06,982 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_7b765f28-cc59-4d5d-a016-35f23f0d323d/sv-benchmarks/c/eca-rers2012/Problem10_label18.c[6668,6681] [2021-10-13 06:50:07,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:50:07,200 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:50:07,272 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_7b765f28-cc59-4d5d-a016-35f23f0d323d/sv-benchmarks/c/eca-rers2012/Problem10_label18.c[6668,6681] [2021-10-13 06:50:07,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:50:07,445 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:50:07,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07 WrapperNode [2021-10-13 06:50:07,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:50:07,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:50:07,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:50:07,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:50:07,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:50:07,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:50:07,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:50:07,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:50:07,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:50:07,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:50:07,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:50:07,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:50:07,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (1/1) ... [2021-10-13 06:50:07,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:50:07,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:50:07,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:50:07,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:50:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 06:50:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:50:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:50:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:50:17,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:50:17,304 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 06:50:17,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:50:17 BoogieIcfgContainer [2021-10-13 06:50:17,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:50:17,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:50:17,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:50:17,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:50:17,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:50:06" (1/3) ... [2021-10-13 06:50:17,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630f0bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:50:17, skipping insertion in model container [2021-10-13 06:50:17,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:07" (2/3) ... [2021-10-13 06:50:17,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630f0bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:50:17, skipping insertion in model container [2021-10-13 06:50:17,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:50:17" (3/3) ... [2021-10-13 06:50:17,322 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label18.c [2021-10-13 06:50:17,335 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:50:17,336 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:50:17,381 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:50:17,387 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 06:50:17,388 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:50:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 06:50:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 06:50:17,408 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:50:17,409 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 06:50:17,409 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:50:17,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:50:17,424 INFO L82 PathProgramCache]: Analyzing trace with hash 885187178, now seen corresponding path program 1 times [2021-10-13 06:50:17,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:50:17,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078386139] [2021-10-13 06:50:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:50:17,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:50:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:50:17,744 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 06:50:17,745 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:50:17,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078386139] [2021-10-13 06:50:17,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078386139] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 06:50:17,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:50:17,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 06:50:17,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127649868] [2021-10-13 06:50:17,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:50:17,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:50:17,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:50:17,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:50:17,778 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 1.6666666666666667) internal successors, (5), 2 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) [2021-10-13 06:50:17,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:50:17,845 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 06:50:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:50:17,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 [2021-10-13 06:50:17,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:50:17,856 INFO L225 Difference]: With dead ends: 23 [2021-10-13 06:50:17,857 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 06:50:17,861 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:50:17,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 06:50:17,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 06:50:17,893 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) [2021-10-13 06:50:17,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 06:50:17,896 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 06:50:17,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:50:17,897 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 06:50:17,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2021-10-13 06:50:17,898 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 06:50:17,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 06:50:17,899 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:50:17,899 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 06:50:17,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 06:50:17,900 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:50:17,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:50:17,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1374764735, now seen corresponding path program 1 times [2021-10-13 06:50:17,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:50:17,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790037236] [2021-10-13 06:50:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:50:17,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:50:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:50:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:50:18,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:50:18,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790037236] [2021-10-13 06:50:18,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790037236] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 06:50:18,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344651066] [2021-10-13 06:50:18,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:50:18,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:50:18,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:50:18,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:50:18,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 06:50:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:50:18,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 06:50:18,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:50:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:50:37,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:50:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 06:50:57,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344651066] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 06:50:57,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-13 06:50:57,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 4] total 8 [2021-10-13 06:50:57,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905600259] [2021-10-13 06:50:57,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:50:57,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:50:57,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:50:57,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-13 06:50:57,502 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 06:50:57,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:50:57,546 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-13 06:50:57,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:50:57,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 [2021-10-13 06:50:57,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:50:57,550 INFO L225 Difference]: With dead ends: 10 [2021-10-13 06:50:57,550 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 06:50:57,551 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 157.8ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-13 06:50:57,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 06:50:57,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 06:50:57,551 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 06:50:57,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 06:50:57,552 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-13 06:50:57,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:50:57,552 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 06:50:57,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 06:50:57,553 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 06:50:57,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 06:50:57,556 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:50:57,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:50:57,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-13 06:50:57,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 06:50:57,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:57,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:57,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:57,783 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-13 06:50:57,783 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 06:50:57,783 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 06:50:57,784 INFO L853 garLoopResultBuilder]: At program point L187-1(lines 30 584) the Hoare annotation is: (or (not (= ~a19~0 6)) (<= ~a1~0 218)) [2021-10-13 06:50:57,785 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 06:50:57,786 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-13 06:50:57,786 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 06:50:57,787 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= ~a19~0 6)) (<= ~a1~0 218)) [2021-10-13 06:50:57,787 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2021-10-13 06:50:57,793 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:50:57,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:50:57 BoogieIcfgContainer [2021-10-13 06:50:57,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:50:57,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:50:57,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:50:57,810 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:50:57,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:50:17" (3/4) ... [2021-10-13 06:50:57,814 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 06:50:57,856 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 183 nodes and edges [2021-10-13 06:50:57,858 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-13 06:50:57,860 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 06:50:57,863 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:50:58,026 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:50:58,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:50:58,028 INFO L168 Benchmark]: Toolchain (without parser) took 51441.08 ms. Allocated memory was 81.8 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 45.9 MB in the beginning and 692.2 MB in the end (delta: -646.3 MB). Peak memory consumption was 553.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:58,029 INFO L168 Benchmark]: CDTParser took 1.19 ms. Allocated memory is still 81.8 MB. Free memory was 60.6 MB in the beginning and 60.6 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:50:58,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.93 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 45.7 MB in the beginning and 65.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:58,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.19 ms. Allocated memory is still 104.9 MB. Free memory was 65.0 MB in the beginning and 57.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:58,031 INFO L168 Benchmark]: Boogie Preprocessor took 103.98 ms. Allocated memory is still 104.9 MB. Free memory was 57.1 MB in the beginning and 52.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:58,031 INFO L168 Benchmark]: RCFGBuilder took 9601.16 ms. Allocated memory was 104.9 MB in the beginning and 341.8 MB in the end (delta: 237.0 MB). Free memory was 52.0 MB in the beginning and 241.4 MB in the end (delta: -189.4 MB). Peak memory consumption was 171.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:58,032 INFO L168 Benchmark]: TraceAbstraction took 40500.66 ms. Allocated memory was 341.8 MB in the beginning and 1.3 GB in the end (delta: 939.5 MB). Free memory was 240.4 MB in the beginning and 707.9 MB in the end (delta: -467.5 MB). Peak memory consumption was 472.0 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:58,032 INFO L168 Benchmark]: Witness Printer took 216.87 ms. Allocated memory is still 1.3 GB. Free memory was 707.9 MB in the beginning and 692.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:58,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19 ms. Allocated memory is still 81.8 MB. Free memory was 60.6 MB in the beginning and 60.6 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 856.93 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 45.7 MB in the beginning and 65.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 153.19 ms. Allocated memory is still 104.9 MB. Free memory was 65.0 MB in the beginning and 57.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.98 ms. Allocated memory is still 104.9 MB. Free memory was 57.1 MB in the beginning and 52.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9601.16 ms. Allocated memory was 104.9 MB in the beginning and 341.8 MB in the end (delta: 237.0 MB). Free memory was 52.0 MB in the beginning and 241.4 MB in the end (delta: -189.4 MB). Peak memory consumption was 171.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 40500.66 ms. Allocated memory was 341.8 MB in the beginning and 1.3 GB in the end (delta: 939.5 MB). Free memory was 240.4 MB in the beginning and 707.9 MB in the end (delta: -467.5 MB). Peak memory consumption was 472.0 MB. Max. memory is 16.1 GB. * Witness Printer took 216.87 ms. Allocated memory is still 1.3 GB. Free memory was 707.9 MB in the beginning and 692.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 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: 188]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40413.3ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 11.2ms, AutomataDifference: 154.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 23.5ms, InitialAbstractionConstructionTime: 9.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 161.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 17 HoareAnnotationTreeSize, 3 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 9.2ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 6.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 30.2ms SsaConstructionTime, 345.0ms SatisfiabilityAnalysisTime, 39382.1ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 463 SizeOfPredicates, 6 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 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: 592]: Loop Invariant Derived loop invariant: !(a19 == 6) || a1 <= 218 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: !(a19 == 6) || a1 <= 218 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 06:50:58,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b765f28-cc59-4d5d-a016-35f23f0d323d/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...