./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl --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 138fe3363990224d4ee1c993f67206032b375644ce625e0beb4bc6a3fb870415 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:03,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:03,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:03,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:03,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:03,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:03,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:03,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:03,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:03,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:03,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:03,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:03,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:03,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:03,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:03,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:03,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:03,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:03,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:03,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:03,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:03,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:03,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:03,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:03,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:03,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:03,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:03,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:03,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:03,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:03,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:03,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:03,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:03,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:03,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:03,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:03,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:03,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:03,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:03,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:03,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:03,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:46:03,366 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:03,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:03,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:03,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:03,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:03,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:03,375 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:03,375 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:03,376 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:03,376 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:46:03,377 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:03,377 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:03,377 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:46:03,378 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:46:03,378 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:03,378 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:46:03,378 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:46:03,379 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:46:03,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:03,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:03,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:46:03,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:03,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:03,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:03,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:03,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:03,381 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:03,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:03,382 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:03,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:03,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:03,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:03,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:03,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:03,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:03,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:03,384 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:46:03,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:46:03,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:03,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:03,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:03,385 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_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe3363990224d4ee1c993f67206032b375644ce625e0beb4bc6a3fb870415 [2021-11-23 16:46:03,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:03,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:03,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:03,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:03,693 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:03,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label03.c [2021-11-23 16:46:03,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data/4f6076acf/54fa1cf8475b4cc3b030c5583314a478/FLAG492b5bf41 [2021-11-23 16:46:06,442 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:06,443 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/sv-benchmarks/c/eca-rers2012/Problem07_label03.c [2021-11-23 16:46:06,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data/4f6076acf/54fa1cf8475b4cc3b030c5583314a478/FLAG492b5bf41 [2021-11-23 16:46:07,128 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data/4f6076acf/54fa1cf8475b4cc3b030c5583314a478 [2021-11-23 16:46:07,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:07,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:07,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:07,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:07,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:07,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:07" (1/1) ... [2021-11-23 16:46:07,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@583e43a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:07, skipping insertion in model container [2021-11-23 16:46:07,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:07" (1/1) ... [2021-11-23 16:46:07,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:08,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:20,016 WARN L230 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_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/sv-benchmarks/c/eca-rers2012/Problem07_label03.c[2770520,2770533] [2021-11-23 16:46:20,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:20,098 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:46:27,289 WARN L230 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_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/sv-benchmarks/c/eca-rers2012/Problem07_label03.c[2770520,2770533] [2021-11-23 16:46:27,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:28,629 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:46:28,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28 WrapperNode [2021-11-23 16:46:28,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:28,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:28,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:46:28,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:46:28,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:32,499 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2021-11-23 16:46:32,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:32,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:46:32,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:46:32,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:46:32,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:32,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:33,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:33,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:34,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:34,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:35,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:35,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:46:35,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:46:35,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:46:35,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:46:35,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:35,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:35,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:46:35,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:46:35,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:46:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:46:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:46:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:46:35,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:46:36,053 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:46:36,054 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:18,466 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:18,594 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 16:47:18,599 INFO L158 Benchmark]: Toolchain (without parser) took 71464.69ms. Allocated memory was 503.3MB in the beginning and 9.6GB in the end (delta: 9.1GB). Free memory was 355.8MB in the beginning and 7.9GB in the end (delta: -7.5GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2021-11-23 16:47:18,600 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:18,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 21495.59ms. Allocated memory was 503.3MB in the beginning and 5.5GB in the end (delta: 5.0GB). Free memory was 355.8MB in the beginning and 4.9GB in the end (delta: -4.5GB). Peak memory consumption was 744.5MB. Max. memory is 16.1GB. [2021-11-23 16:47:18,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 3869.88ms. Allocated memory is still 5.5GB. Free memory was 4.9GB in the beginning and 4.5GB in the end (delta: 322.9MB). Peak memory consumption was 499.1MB. Max. memory is 16.1GB. [2021-11-23 16:47:18,603 INFO L158 Benchmark]: Boogie Preprocessor took 3279.41ms. Allocated memory is still 5.5GB. Free memory was 4.5GB in the beginning and 4.3GB in the end (delta: 284.2MB). Peak memory consumption was 351.3MB. Max. memory is 16.1GB. [2021-11-23 16:47:18,604 INFO L158 Benchmark]: RCFGBuilder took 42814.90ms. Allocated memory was 5.5GB in the beginning and 9.6GB in the end (delta: 4.1GB). Free memory was 4.3GB in the beginning and 7.9GB in the end (delta: -3.6GB). Peak memory consumption was 590.3MB. Max. memory is 16.1GB. [2021-11-23 16:47:18,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 21495.59ms. Allocated memory was 503.3MB in the beginning and 5.5GB in the end (delta: 5.0GB). Free memory was 355.8MB in the beginning and 4.9GB in the end (delta: -4.5GB). Peak memory consumption was 744.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 3869.88ms. Allocated memory is still 5.5GB. Free memory was 4.9GB in the beginning and 4.5GB in the end (delta: 322.9MB). Peak memory consumption was 499.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 3279.41ms. Allocated memory is still 5.5GB. Free memory was 4.5GB in the beginning and 4.3GB in the end (delta: 284.2MB). Peak memory consumption was 351.3MB. Max. memory is 16.1GB. * RCFGBuilder took 42814.90ms. Allocated memory was 5.5GB in the beginning and 9.6GB in the end (delta: 4.1GB). Free memory was 4.3GB in the beginning and 7.9GB in the end (delta: -3.6GB). Peak memory consumption was 590.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:47:18,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl --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 138fe3363990224d4ee1c993f67206032b375644ce625e0beb4bc6a3fb870415 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:47:21,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:47:21,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:47:21,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:47:21,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:47:21,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:47:21,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:47:21,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:47:21,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:47:21,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:47:21,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:47:21,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:47:21,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:47:21,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:47:21,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:47:21,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:47:21,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:47:21,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:47:21,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:47:21,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:47:21,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:47:21,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:47:21,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:47:21,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:47:21,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:47:21,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:47:21,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:47:21,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:47:21,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:47:21,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:47:21,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:47:21,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:47:21,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:47:21,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:47:21,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:47:21,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:47:21,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:47:21,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:47:21,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:47:21,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:47:21,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:47:21,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:47:21,836 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:47:21,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:47:21,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:47:21,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:47:21,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:47:21,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:47:21,839 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:47:21,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:47:21,840 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:47:21,840 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:47:21,840 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:47:21,840 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:47:21,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:47:21,842 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:47:21,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:47:21,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:47:21,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:47:21,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:47:21,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:47:21,843 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:47:21,844 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:47:21,844 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:47:21,844 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:47:21,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:47:21,845 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:47:21,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:47:21,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:47:21,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:47:21,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:47:21,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:21,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:47:21,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:47:21,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:47:21,847 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:47:21,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:47:21,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:47:21,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:47:21,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:47:21,848 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe3363990224d4ee1c993f67206032b375644ce625e0beb4bc6a3fb870415 [2021-11-23 16:47:22,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:47:22,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:47:22,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:47:22,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:47:22,364 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:47:22,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label03.c [2021-11-23 16:47:22,453 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data/4697b9ab6/bfce6db9488a4ce48a3cfe1d193ec2a3/FLAG385863491 [2021-11-23 16:47:26,030 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:47:26,032 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/sv-benchmarks/c/eca-rers2012/Problem07_label03.c [2021-11-23 16:47:26,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data/4697b9ab6/bfce6db9488a4ce48a3cfe1d193ec2a3/FLAG385863491 [2021-11-23 16:47:26,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/data/4697b9ab6/bfce6db9488a4ce48a3cfe1d193ec2a3 [2021-11-23 16:47:26,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:47:26,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:47:26,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:26,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:47:26,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:47:26,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:26" (1/1) ... [2021-11-23 16:47:26,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f0449f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:26, skipping insertion in model container [2021-11-23 16:47:26,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:26" (1/1) ... [2021-11-23 16:47:26,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:47:28,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:41,938 WARN L230 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_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/sv-benchmarks/c/eca-rers2012/Problem07_label03.c[2770520,2770533] [2021-11-23 16:47:42,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:42,031 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:47:50,860 WARN L230 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_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/sv-benchmarks/c/eca-rers2012/Problem07_label03.c[2770520,2770533] [2021-11-23 16:47:50,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:52,308 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:47:52,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52 WrapperNode [2021-11-23 16:47:52,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:52,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:52,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:47:52,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:47:52,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:53,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:56,119 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83726 [2021-11-23 16:47:56,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:56,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:47:56,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:47:56,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:47:56,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:56,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:56,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:56,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:57,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:58,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:59,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:59,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:47:59,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:47:59,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:47:59,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:47:59,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (1/1) ... [2021-11-23 16:47:59,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:59,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:59,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:47:59,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:47:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:47:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:47:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:47:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:47:59,828 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:47:59,830 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:49:00,357 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:49:00,429 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:49:00,429 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:49:00,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:49:00 BoogieIcfgContainer [2021-11-23 16:49:00,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:49:00,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:49:00,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:49:00,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:49:00,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:47:26" (1/3) ... [2021-11-23 16:49:00,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2988b246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:49:00, skipping insertion in model container [2021-11-23 16:49:00,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:52" (2/3) ... [2021-11-23 16:49:00,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2988b246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:49:00, skipping insertion in model container [2021-11-23 16:49:00,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:49:00" (3/3) ... [2021-11-23 16:49:00,452 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label03.c [2021-11-23 16:49:00,458 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:49:00,459 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:49:00,552 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:49:00,559 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, mAutomataTypeConcurrency=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 [2021-11-23 16:49:00,560 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:49:00,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 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) [2021-11-23 16:49:01,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10109 [2021-11-23 16:49:01,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:49:01,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:49:01,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:49:01,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:49:01,862 INFO L85 PathProgramCache]: Analyzing trace with hash 542206770, now seen corresponding path program 1 times [2021-11-23 16:49:01,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:49:01,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562163112] [2021-11-23 16:49:01,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:49:01,996 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:49:01,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:49:02,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:49:02,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c8029b-4a04-4c47-b7c4-e2623d4c15c0/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:49:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:49:07,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 10246 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-23 16:49:07,781 INFO L286 TraceCheckSpWp]: Computing forward predicates...