./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P --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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:32:33,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:32:33,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:32:33,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:32:33,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:32:33,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:32:33,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:32:33,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:32:33,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:32:33,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:32:33,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:32:33,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:32:33,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:32:33,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:32:33,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:32:33,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:32:33,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:32:33,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:32:33,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:32:33,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:32:33,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:32:33,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:32:33,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:32:33,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:32:33,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:32:33,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:32:33,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:32:33,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:32:33,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:32:33,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:32:33,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:32:33,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:32:33,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:32:33,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:32:33,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:32:33,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:32:33,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:32:33,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:32:33,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:32:33,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:32:33,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:32:33,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:32:33,383 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:32:33,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:32:33,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:32:33,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:32:33,384 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:32:33,385 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:32:33,385 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:32:33,385 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:32:33,385 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:32:33,386 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:32:33,386 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:32:33,386 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:32:33,386 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:32:33,386 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:32:33,387 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:32:33,387 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:32:33,387 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:32:33,387 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:32:33,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:32:33,388 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:32:33,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:32:33,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:32:33,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:32:33,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:32:33,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:32:33,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:32:33,390 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:32:33,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:32:33,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:32:33,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:32:33,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:32:33,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:32:33,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:33,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:32:33,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:32:33,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:32:33,392 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:32:33,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:32:33,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:32:33,393 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:32:33,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:32:33,393 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_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2021-11-20 23:32:33,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:32:33,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:32:33,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:32:33,697 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:32:33,699 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:32:33,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2021-11-20 23:32:33,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/data/f5d6966b4/5f17e895b1154e8bbf953898ea111906/FLAG42b13f811 [2021-11-20 23:32:34,324 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:32:34,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2021-11-20 23:32:34,344 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/data/f5d6966b4/5f17e895b1154e8bbf953898ea111906/FLAG42b13f811 [2021-11-20 23:32:34,623 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/data/f5d6966b4/5f17e895b1154e8bbf953898ea111906 [2021-11-20 23:32:34,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:32:34,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:32:34,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:34,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:32:34,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:32:34,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:34" (1/1) ... [2021-11-20 23:32:34,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559dcb44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:34, skipping insertion in model container [2021-11-20 23:32:34,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:34" (1/1) ... [2021-11-20 23:32:34,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:32:34,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:32:34,874 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_d302e3c8-d13b-4a19-be1b-fb7a833b7804/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2021-11-20 23:32:35,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:35,035 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:32:35,047 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_d302e3c8-d13b-4a19-be1b-fb7a833b7804/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2021-11-20 23:32:35,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:35,114 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:32:35,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35 WrapperNode [2021-11-20 23:32:35,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:35,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:35,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:32:35,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:32:35,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,163 INFO L137 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 118 [2021-11-20 23:32:35,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:35,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:32:35,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:32:35,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:32:35,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:32:35,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:32:35,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:32:35,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:32:35,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:35,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:35,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:32:35,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:32:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:32:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2021-11-20 23:32:35,289 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2021-11-20 23:32:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:32:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 23:32:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:32:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:32:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:32:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:32:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:32:35,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:32:35,292 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 23:32:35,400 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:32:35,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:32:35,680 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:32:35,690 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:32:35,690 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 23:32:35,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:35 BoogieIcfgContainer [2021-11-20 23:32:35,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:32:35,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:32:35,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:32:35,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:32:35,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:32:34" (1/3) ... [2021-11-20 23:32:35,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59204632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:35, skipping insertion in model container [2021-11-20 23:32:35,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (2/3) ... [2021-11-20 23:32:35,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59204632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:35, skipping insertion in model container [2021-11-20 23:32:35,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:35" (3/3) ... [2021-11-20 23:32:35,724 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2021-11-20 23:32:35,729 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 23:32:35,729 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:32:35,730 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 23:32:35,730 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 23:32:35,803 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,805 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,805 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,806 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,806 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,809 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,809 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,809 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,810 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,810 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,810 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,810 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,811 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,811 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,811 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,812 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,812 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,812 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,813 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,813 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,814 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,814 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,814 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,814 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,815 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,815 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,815 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,815 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,816 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,816 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,816 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,816 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,817 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,817 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,817 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,817 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,818 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,818 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,818 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,818 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,818 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,819 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,819 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,819 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,820 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,820 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,820 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,821 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,821 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,821 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,821 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,822 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,822 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,822 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,822 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,822 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,823 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,824 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,824 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,824 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,825 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,825 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,825 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,825 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,826 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,826 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,826 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,826 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,827 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,827 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,827 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,828 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,828 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,828 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,829 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,829 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,830 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,833 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,834 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,834 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,834 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,834 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,835 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,836 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,836 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,836 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,842 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,842 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,843 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,843 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,843 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,843 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,843 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,844 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,845 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,846 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,858 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,858 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,858 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,859 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,859 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,859 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,859 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,859 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,860 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,860 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,860 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,860 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,860 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,861 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,861 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,861 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,861 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,862 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,864 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,864 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,865 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,865 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,865 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,865 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,866 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,866 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,866 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,866 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,868 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,868 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,868 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,870 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,870 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,872 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,872 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,872 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,872 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,872 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,880 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,880 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,880 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,881 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,881 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,881 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,881 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,881 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,882 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,882 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,882 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,882 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,882 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,883 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,883 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,883 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,883 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,884 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,884 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,884 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:32:35,888 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 23:32:35,949 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:32:35,958 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 [2021-11-20 23:32:35,958 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-20 23:32:35,991 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-20 23:32:36,004 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 142 transitions, 289 flow [2021-11-20 23:32:36,007 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 142 transitions, 289 flow [2021-11-20 23:32:36,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 142 transitions, 289 flow [2021-11-20 23:32:36,089 INFO L129 PetriNetUnfolder]: 10/141 cut-off events. [2021-11-20 23:32:36,089 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 23:32:36,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 141 events. 10/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 226 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2021-11-20 23:32:36,103 INFO L116 LiptonReduction]: Number of co-enabled transitions 4712 [2021-11-20 23:32:40,441 INFO L131 LiptonReduction]: Checked pairs total: 6332 [2021-11-20 23:32:40,442 INFO L133 LiptonReduction]: Total number of compositions: 141 [2021-11-20 23:32:40,453 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 28 transitions, 61 flow [2021-11-20 23:32:40,470 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 98 states, 96 states have (on average 2.3958333333333335) internal successors, (230), 97 states have internal predecessors, (230), 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) [2021-11-20 23:32:40,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 96 states have (on average 2.3958333333333335) internal successors, (230), 97 states have internal predecessors, (230), 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) [2021-11-20 23:32:40,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 23:32:40,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:40,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 23:32:40,482 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:32:40,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:40,487 INFO L85 PathProgramCache]: Analyzing trace with hash -571934413, now seen corresponding path program 1 times [2021-11-20 23:32:40,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:40,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383224889] [2021-11-20 23:32:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:40,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:40,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:40,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:40,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383224889] [2021-11-20 23:32:40,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383224889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:40,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:40,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:40,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362106775] [2021-11-20 23:32:40,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:40,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:32:40,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:40,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:32:40,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:32:40,721 INFO L87 Difference]: Start difference. First operand has 98 states, 96 states have (on average 2.3958333333333335) internal successors, (230), 97 states have internal predecessors, (230), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-20 23:32:40,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:40,793 INFO L93 Difference]: Finished difference Result 98 states and 222 transitions. [2021-11-20 23:32:40,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:32:40,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-20 23:32:40,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:40,807 INFO L225 Difference]: With dead ends: 98 [2021-11-20 23:32:40,808 INFO L226 Difference]: Without dead ends: 98 [2021-11-20 23:32:40,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:32:40,814 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:40,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:32:40,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-20 23:32:40,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-11-20 23:32:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 96 states have (on average 2.3125) internal successors, (222), 97 states have internal predecessors, (222), 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) [2021-11-20 23:32:40,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 222 transitions. [2021-11-20 23:32:40,879 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 222 transitions. Word has length 6 [2021-11-20 23:32:40,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:40,880 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 222 transitions. [2021-11-20 23:32:40,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-20 23:32:40,882 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 222 transitions. [2021-11-20 23:32:40,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 23:32:40,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:40,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 23:32:40,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:32:40,884 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:32:40,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash -571937739, now seen corresponding path program 1 times [2021-11-20 23:32:40,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:40,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034365621] [2021-11-20 23:32:40,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:40,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:41,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:41,040 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:41,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034365621] [2021-11-20 23:32:41,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034365621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:41,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:41,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:41,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990607731] [2021-11-20 23:32:41,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:41,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:41,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:41,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:41,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:41,043 INFO L87 Difference]: Start difference. First operand 98 states and 222 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-20 23:32:41,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:41,161 INFO L93 Difference]: Finished difference Result 128 states and 286 transitions. [2021-11-20 23:32:41,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:32:41,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-20 23:32:41,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:41,164 INFO L225 Difference]: With dead ends: 128 [2021-11-20 23:32:41,164 INFO L226 Difference]: Without dead ends: 122 [2021-11-20 23:32:41,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:32:41,166 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 25 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:41,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 3 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:32:41,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-20 23:32:41,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112. [2021-11-20 23:32:41,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 2.2818181818181817) internal successors, (251), 111 states have internal predecessors, (251), 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) [2021-11-20 23:32:41,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 251 transitions. [2021-11-20 23:32:41,179 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 251 transitions. Word has length 6 [2021-11-20 23:32:41,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:41,179 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 251 transitions. [2021-11-20 23:32:41,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-20 23:32:41,180 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 251 transitions. [2021-11-20 23:32:41,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 23:32:41,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:41,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:41,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:32:41,181 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:32:41,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:41,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1798522638, now seen corresponding path program 1 times [2021-11-20 23:32:41,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:41,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345865973] [2021-11-20 23:32:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:41,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:41,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:41,335 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:41,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345865973] [2021-11-20 23:32:41,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345865973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:41,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:41,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:32:41,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747316056] [2021-11-20 23:32:41,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:41,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:41,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:41,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:41,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:41,338 INFO L87 Difference]: Start difference. First operand 112 states and 251 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2021-11-20 23:32:41,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:41,406 INFO L93 Difference]: Finished difference Result 177 states and 395 transitions. [2021-11-20 23:32:41,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:32:41,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) Word has length 11 [2021-11-20 23:32:41,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:41,415 INFO L225 Difference]: With dead ends: 177 [2021-11-20 23:32:41,415 INFO L226 Difference]: Without dead ends: 177 [2021-11-20 23:32:41,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:41,420 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 36 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:41,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 3 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:32:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-11-20 23:32:41,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 113. [2021-11-20 23:32:41,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 2.225225225225225) internal successors, (247), 112 states have internal predecessors, (247), 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) [2021-11-20 23:32:41,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 247 transitions. [2021-11-20 23:32:41,440 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 247 transitions. Word has length 11 [2021-11-20 23:32:41,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:41,440 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 247 transitions. [2021-11-20 23:32:41,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2021-11-20 23:32:41,440 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 247 transitions. [2021-11-20 23:32:41,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 23:32:41,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:41,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:41,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:32:41,443 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:32:41,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:41,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1734006566, now seen corresponding path program 2 times [2021-11-20 23:32:41,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:41,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239778545] [2021-11-20 23:32:41,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:41,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:41,572 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:41,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239778545] [2021-11-20 23:32:41,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239778545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:41,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:41,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:32:41,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557184469] [2021-11-20 23:32:41,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:41,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:41,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:41,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:41,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:41,574 INFO L87 Difference]: Start difference. First operand 113 states and 247 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2021-11-20 23:32:41,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:41,616 INFO L93 Difference]: Finished difference Result 48 states and 82 transitions. [2021-11-20 23:32:41,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:32:41,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) Word has length 11 [2021-11-20 23:32:41,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:41,617 INFO L225 Difference]: With dead ends: 48 [2021-11-20 23:32:41,618 INFO L226 Difference]: Without dead ends: 44 [2021-11-20 23:32:41,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:41,619 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 30 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:41,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 2 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:32:41,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-20 23:32:41,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-20 23:32:41,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 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) [2021-11-20 23:32:41,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 73 transitions. [2021-11-20 23:32:41,623 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 73 transitions. Word has length 11 [2021-11-20 23:32:41,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:41,624 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 73 transitions. [2021-11-20 23:32:41,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2021-11-20 23:32:41,624 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2021-11-20 23:32:41,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:32:41,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:41,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:41,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:32:41,625 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:32:41,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash -108198297, now seen corresponding path program 1 times [2021-11-20 23:32:41,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:41,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552574194] [2021-11-20 23:32:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:41,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:41,810 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:41,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552574194] [2021-11-20 23:32:41,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552574194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:41,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:41,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:32:41,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704529783] [2021-11-20 23:32:41,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:41,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 23:32:41,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:41,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 23:32:41,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:32:41,813 INFO L87 Difference]: Start difference. First operand 44 states and 73 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-11-20 23:32:41,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:41,997 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2021-11-20 23:32:41,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 23:32:41,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 12 [2021-11-20 23:32:41,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:41,998 INFO L225 Difference]: With dead ends: 63 [2021-11-20 23:32:41,998 INFO L226 Difference]: Without dead ends: 63 [2021-11-20 23:32:41,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:32:42,000 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 29 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:42,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:32:42,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-20 23:32:42,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 49. [2021-11-20 23:32:42,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 47 states have (on average 1.6170212765957446) internal successors, (76), 48 states have internal predecessors, (76), 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) [2021-11-20 23:32:42,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 76 transitions. [2021-11-20 23:32:42,004 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 76 transitions. Word has length 12 [2021-11-20 23:32:42,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:42,005 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 76 transitions. [2021-11-20 23:32:42,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-11-20 23:32:42,005 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 76 transitions. [2021-11-20 23:32:42,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 23:32:42,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:42,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:42,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:32:42,006 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:32:42,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash 940821091, now seen corresponding path program 1 times [2021-11-20 23:32:42,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:42,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536181104] [2021-11-20 23:32:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:42,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:42,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:42,051 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:42,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536181104] [2021-11-20 23:32:42,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536181104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:42,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:42,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:32:42,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074538003] [2021-11-20 23:32:42,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:42,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:42,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:42,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:42,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:42,053 INFO L87 Difference]: Start difference. First operand 49 states and 76 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-11-20 23:32:42,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:42,117 INFO L93 Difference]: Finished difference Result 49 states and 76 transitions. [2021-11-20 23:32:42,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:32:42,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-11-20 23:32:42,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:42,118 INFO L225 Difference]: With dead ends: 49 [2021-11-20 23:32:42,118 INFO L226 Difference]: Without dead ends: 49 [2021-11-20 23:32:42,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:32:42,119 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 19 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:42,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 3 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:32:42,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-20 23:32:42,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2021-11-20 23:32:42,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 46 states have internal predecessors, (73), 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) [2021-11-20 23:32:42,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 73 transitions. [2021-11-20 23:32:42,124 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 73 transitions. Word has length 13 [2021-11-20 23:32:42,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:42,124 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 73 transitions. [2021-11-20 23:32:42,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-11-20 23:32:42,124 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2021-11-20 23:32:42,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 23:32:42,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:42,125 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:42,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:32:42,126 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:32:42,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:42,126 INFO L85 PathProgramCache]: Analyzing trace with hash 379446113, now seen corresponding path program 1 times [2021-11-20 23:32:42,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:42,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458668480] [2021-11-20 23:32:42,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:42,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:42,241 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:42,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458668480] [2021-11-20 23:32:42,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458668480] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:32:42,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271537013] [2021-11-20 23:32:42,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:42,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:42,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:42,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:42,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:32:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:42,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-20 23:32:42,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:42,517 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-20 23:32:42,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2021-11-20 23:32:42,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-20 23:32:42,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-20 23:32:43,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:43,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:32:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:43,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271537013] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:32:43,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [838686431] [2021-11-20 23:32:43,201 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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) [2021-11-20 23:32:43,202 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 23:32:43,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 21 [2021-11-20 23:32:43,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067802693] [2021-11-20 23:32:43,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 23:32:43,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 23:32:43,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:43,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 23:32:43,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2021-11-20 23:32:43,205 INFO L87 Difference]: Start difference. First operand 47 states and 73 transitions. Second operand has 22 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 22 states have internal predecessors, (56), 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) [2021-11-20 23:32:43,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:43,830 INFO L93 Difference]: Finished difference Result 123 states and 191 transitions. [2021-11-20 23:32:43,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 23:32:43,831 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 23:32:43,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:43,832 INFO L225 Difference]: With dead ends: 123 [2021-11-20 23:32:43,832 INFO L226 Difference]: Without dead ends: 87 [2021-11-20 23:32:43,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=682, Unknown=0, NotChecked=0, Total=870 [2021-11-20 23:32:43,833 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 147 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:43,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 48 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 23:32:43,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-20 23:32:43,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 68. [2021-11-20 23:32:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.462686567164179) internal successors, (98), 67 states have internal predecessors, (98), 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) [2021-11-20 23:32:43,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 98 transitions. [2021-11-20 23:32:43,842 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 98 transitions. Word has length 19 [2021-11-20 23:32:43,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:43,842 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 98 transitions. [2021-11-20 23:32:43,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 22 states have internal predecessors, (56), 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) [2021-11-20 23:32:43,843 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2021-11-20 23:32:43,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 23:32:43,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:43,847 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:43,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:44,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 23:32:44,048 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:32:44,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:44,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1218166721, now seen corresponding path program 2 times [2021-11-20 23:32:44,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:44,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638339443] [2021-11-20 23:32:44,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:44,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:44,280 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:44,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:44,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638339443] [2021-11-20 23:32:44,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638339443] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:32:44,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562770043] [2021-11-20 23:32:44,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 23:32:44,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:44,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:44,283 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:44,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:32:44,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-20 23:32:44,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:32:44,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-20 23:32:44,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:44,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-11-20 23:32:44,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-20 23:32:45,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-11-20 23:32:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:45,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:32:45,660 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-11-20 23:32:45,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 34 [2021-11-20 23:32:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:45,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562770043] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:32:45,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1602311515] [2021-11-20 23:32:45,686 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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) [2021-11-20 23:32:45,686 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 23:32:45,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 37 [2021-11-20 23:32:45,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078366745] [2021-11-20 23:32:45,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 23:32:45,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-20 23:32:45,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:45,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-20 23:32:45,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1064, Unknown=0, NotChecked=0, Total=1332 [2021-11-20 23:32:45,689 INFO L87 Difference]: Start difference. First operand 68 states and 98 transitions. Second operand has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 37 states have internal predecessors, (76), 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) [2021-11-20 23:32:46,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:46,356 INFO L93 Difference]: Finished difference Result 110 states and 154 transitions. [2021-11-20 23:32:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 23:32:46,356 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 37 states have internal predecessors, (76), 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 29 [2021-11-20 23:32:46,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:46,357 INFO L225 Difference]: With dead ends: 110 [2021-11-20 23:32:46,357 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 23:32:46,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=560, Invalid=1696, Unknown=0, NotChecked=0, Total=2256 [2021-11-20 23:32:46,359 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 120 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 141 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:46,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 73 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 380 Invalid, 0 Unknown, 141 Unchecked, 0.3s Time] [2021-11-20 23:32:46,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 23:32:46,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 23:32:46,360 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) [2021-11-20 23:32:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 23:32:46,360 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-11-20 23:32:46,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:46,361 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 23:32:46,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 37 states have internal predecessors, (76), 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) [2021-11-20 23:32:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 23:32:46,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 23:32:46,363 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2021-11-20 23:32:46,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-20 23:32:46,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-20 23:32:46,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-20 23:32:46,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-20 23:32:46,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:46,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-20 23:32:46,576 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2021-11-20 23:32:46,580 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 23:32:46,580 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:32:46,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:32:46 BasicIcfg [2021-11-20 23:32:46,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:32:46,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:32:46,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:32:46,583 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:32:46,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:35" (3/4) ... [2021-11-20 23:32:46,587 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 23:32:46,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2021-11-20 23:32:46,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-20 23:32:46,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 23:32:46,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 23:32:46,600 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 23:32:46,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-20 23:32:46,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:32:46,632 INFO L158 Benchmark]: Toolchain (without parser) took 12004.68ms. Allocated memory was 94.4MB in the beginning and 151.0MB in the end (delta: 56.6MB). Free memory was 50.0MB in the beginning and 105.9MB in the end (delta: -55.8MB). Peak memory consumption was 180.7kB. Max. memory is 16.1GB. [2021-11-20 23:32:46,632 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:32:46,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.28ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 53.2MB in the end (delta: -3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 23:32:46,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.35ms. Allocated memory is still 94.4MB. Free memory was 53.2MB in the beginning and 50.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:32:46,633 INFO L158 Benchmark]: Boogie Preprocessor took 30.23ms. Allocated memory is still 94.4MB. Free memory was 50.9MB in the beginning and 49.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:32:46,634 INFO L158 Benchmark]: RCFGBuilder took 497.46ms. Allocated memory is still 94.4MB. Free memory was 49.2MB in the beginning and 35.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 23:32:46,634 INFO L158 Benchmark]: TraceAbstraction took 10888.20ms. Allocated memory was 94.4MB in the beginning and 151.0MB in the end (delta: 56.6MB). Free memory was 34.8MB in the beginning and 108.7MB in the end (delta: -73.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:32:46,634 INFO L158 Benchmark]: Witness Printer took 48.17ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 105.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:32:46,636 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 94.4MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.28ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 53.2MB in the end (delta: -3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.35ms. Allocated memory is still 94.4MB. Free memory was 53.2MB in the beginning and 50.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.23ms. Allocated memory is still 94.4MB. Free memory was 50.9MB in the beginning and 49.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 497.46ms. Allocated memory is still 94.4MB. Free memory was 49.2MB in the beginning and 35.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10888.20ms. Allocated memory was 94.4MB in the beginning and 151.0MB in the end (delta: 56.6MB). Free memory was 34.8MB in the beginning and 108.7MB in the end (delta: -73.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.17ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 105.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 136 PlacesBefore, 26 PlacesAfterwards, 142 TransitionsBefore, 28 TransitionsAfterwards, 4712 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 27 ConcurrentYvCompositions, 4 ChoiceCompositions, 141 TotalNumberOfCompositions, 6332 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4864, positive: 4710, positive conditional: 0, positive unconditional: 4710, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3378, positive: 3314, positive conditional: 0, positive unconditional: 3314, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3378, positive: 3302, positive conditional: 0, positive unconditional: 3302, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 76, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 216, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 180, negative conditional: 0, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4864, positive: 1396, positive conditional: 0, positive unconditional: 1396, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 3378, unknown conditional: 0, unknown unconditional: 3378] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 with 1 thread instances CFG has 3 procedures, 190 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 406 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 406 mSDsluCounter, 158 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 141 IncrementalHoareTripleChecker+Unchecked, 361 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1364 IncrementalHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 23 mSDtfsCounter, 1364 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=3, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 109 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 191 ConstructedInterpolants, 10 QuantifiedInterpolants, 1943 SizeOfPredicates, 45 NumberOfNonLiveVariables, 408 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 49/57 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-20 23:32:46,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d302e3c8-d13b-4a19-be1b-fb7a833b7804/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE