./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH --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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:26:28,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:26:28,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:26:28,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:26:28,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:26:28,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:26:28,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:26:28,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:26:28,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:26:28,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:26:28,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:26:28,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:26:28,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:26:28,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:26:28,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:26:28,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:26:28,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:26:28,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:26:28,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:26:28,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:26:28,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:26:28,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:26:28,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:26:28,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:26:28,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:26:28,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:26:28,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:26:28,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:26:28,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:26:28,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:26:28,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:26:28,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:26:28,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:26:28,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:26:28,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:26:28,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:26:28,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:26:28,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:26:28,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:26:28,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:26:28,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:26:28,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:26:28,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:26:28,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:26:28,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:26:28,444 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:26:28,444 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:26:28,444 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:26:28,445 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:26:28,445 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:26:28,452 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:26:28,452 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:26:28,453 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:26:28,453 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:26:28,454 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:26:28,454 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:26:28,454 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:26:28,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:26:28,455 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:26:28,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:26:28,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:26:28,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:26:28,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:26:28,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:26:28,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:26:28,457 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:26:28,457 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:26:28,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:26:28,458 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:26:28,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:26:28,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:26:28,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:26:28,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:26:28,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:26:28,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:26:28,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:26:28,461 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:26:28,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:26:28,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:26:28,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:26:28,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:26:28,462 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_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2021-11-03 05:26:28,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:26:28,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:26:28,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:26:28,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:26:28,849 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:26:28,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2021-11-03 05:26:28,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/data/c964dcc22/5f40df70a72a4c119b46a158bc4cff2f/FLAG7e1114f42 [2021-11-03 05:26:29,654 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:26:29,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2021-11-03 05:26:29,675 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/data/c964dcc22/5f40df70a72a4c119b46a158bc4cff2f/FLAG7e1114f42 [2021-11-03 05:26:29,887 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/data/c964dcc22/5f40df70a72a4c119b46a158bc4cff2f [2021-11-03 05:26:29,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:26:29,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:26:29,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:26:29,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:26:29,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:26:29,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:26:29" (1/1) ... [2021-11-03 05:26:29,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f69e28a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:29, skipping insertion in model container [2021-11-03 05:26:29,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:26:29" (1/1) ... [2021-11-03 05:26:29,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:26:29,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:26:30,169 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2021-11-03 05:26:30,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:26:30,599 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:26:30,617 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2021-11-03 05:26:30,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:26:30,834 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:26:30,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30 WrapperNode [2021-11-03 05:26:30,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:26:30,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:26:30,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:26:30,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:26:30,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:30,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:30,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:26:30,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:26:30,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:26:30,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:26:30,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:30,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:30,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:30,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:30,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:31,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:31,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:31,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:26:31,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:26:31,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:26:31,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:26:31,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (1/1) ... [2021-11-03 05:26:31,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:26:31,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:26:31,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:26:31,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:26:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2021-11-03 05:26:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:26:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2021-11-03 05:26:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2021-11-03 05:26:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:26:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:26:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-03 05:26:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2021-11-03 05:26:31,131 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2021-11-03 05:26:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure process [2021-11-03 05:26:31,131 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2021-11-03 05:26:31,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:26:31,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:26:31,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:26:31,135 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 05:26:31,878 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:26:31,878 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-03 05:26:31,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:26:31 BoogieIcfgContainer [2021-11-03 05:26:31,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:26:31,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:26:31,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:26:31,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:26:31,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:26:29" (1/3) ... [2021-11-03 05:26:31,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb24f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:26:31, skipping insertion in model container [2021-11-03 05:26:31,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:30" (2/3) ... [2021-11-03 05:26:31,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb24f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:26:31, skipping insertion in model container [2021-11-03 05:26:31,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:26:31" (3/3) ... [2021-11-03 05:26:31,891 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2021-11-03 05:26:31,897 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 05:26:31,898 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:26:31,898 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-03 05:26:31,898 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 05:26:31,940 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,940 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,940 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,941 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,941 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,941 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,941 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,942 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,942 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,942 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,943 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,943 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,943 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,943 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,944 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,944 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,944 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,944 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,945 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,945 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,945 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,945 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,946 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,946 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,946 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,946 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,947 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,947 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,947 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,947 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,948 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,948 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,948 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,948 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,949 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,949 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,949 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,949 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,950 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,950 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,950 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,950 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,951 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,951 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,951 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,951 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,952 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,952 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,952 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,952 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,953 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,953 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,953 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,954 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,954 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,954 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,954 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,954 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,955 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,955 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,955 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,955 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,956 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,956 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,956 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,956 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,957 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,957 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,957 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,957 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,958 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,958 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,958 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,958 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,958 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,959 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,959 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,959 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,959 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,959 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,960 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,960 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,961 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,961 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,961 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,961 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,962 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,962 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,962 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,962 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,962 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,963 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,963 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,963 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,963 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,964 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,964 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,964 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,964 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,964 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,965 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,965 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,965 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,965 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,966 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,966 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,966 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,966 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,967 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,967 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,967 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,967 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,967 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,967 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,968 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,968 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,968 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,968 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,968 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,969 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,972 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,973 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,973 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,973 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,973 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,973 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,974 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,974 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,974 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,979 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,980 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,980 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,980 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,980 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,980 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,981 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,981 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,983 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,983 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,984 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,984 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,984 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,984 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,984 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,985 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,985 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,985 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:26:31,987 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-03 05:26:32,065 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:26:32,072 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 [2021-11-03 05:26:32,072 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 05:26:32,092 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 05:26:32,105 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 149 transitions, 313 flow [2021-11-03 05:26:32,108 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 149 transitions, 313 flow [2021-11-03 05:26:32,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 149 transitions, 313 flow [2021-11-03 05:26:32,195 INFO L129 PetriNetUnfolder]: 12/146 cut-off events. [2021-11-03 05:26:32,197 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-03 05:26:32,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 146 events. 12/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 302 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 119. Up to 3 conditions per place. [2021-11-03 05:26:32,215 INFO L116 LiptonReduction]: Number of co-enabled transitions 8580 [2021-11-03 05:26:39,865 INFO L131 LiptonReduction]: Checked pairs total: 20486 [2021-11-03 05:26:39,866 INFO L133 LiptonReduction]: Total number of compositions: 128 [2021-11-03 05:26:39,876 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 49 transitions, 113 flow [2021-11-03 05:26:40,234 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5474 states, 5471 states have (on average 4.405775909340157) internal successors, (24104), 5473 states have internal predecessors, (24104), 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) [2021-11-03 05:26:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 5474 states, 5471 states have (on average 4.405775909340157) internal successors, (24104), 5473 states have internal predecessors, (24104), 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) [2021-11-03 05:26:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 05:26:40,282 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:40,283 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:40,284 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-11-03 05:26:40,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:40,289 INFO L85 PathProgramCache]: Analyzing trace with hash 403996718, now seen corresponding path program 1 times [2021-11-03 05:26:40,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:40,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193178783] [2021-11-03 05:26:40,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:40,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:40,815 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:40,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193178783] [2021-11-03 05:26:40,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193178783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:40,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:40,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 05:26:40,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338445994] [2021-11-03 05:26:40,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:26:40,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:40,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:26:40,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:26:40,873 INFO L87 Difference]: Start difference. First operand has 5474 states, 5471 states have (on average 4.405775909340157) internal successors, (24104), 5473 states have internal predecessors, (24104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:41,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:41,170 INFO L93 Difference]: Finished difference Result 6000 states and 25080 transitions. [2021-11-03 05:26:41,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:26:41,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 05:26:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:41,294 INFO L225 Difference]: With dead ends: 6000 [2021-11-03 05:26:41,295 INFO L226 Difference]: Without dead ends: 6000 [2021-11-03 05:26:41,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:26:41,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-11-03 05:26:41,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 5769. [2021-11-03 05:26:41,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5769 states, 5769 states have (on average 4.216675333680014) internal successors, (24326), 5768 states have internal predecessors, (24326), 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) [2021-11-03 05:26:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5769 states to 5769 states and 24326 transitions. [2021-11-03 05:26:41,864 INFO L78 Accepts]: Start accepts. Automaton has 5769 states and 24326 transitions. Word has length 10 [2021-11-03 05:26:41,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:41,865 INFO L470 AbstractCegarLoop]: Abstraction has 5769 states and 24326 transitions. [2021-11-03 05:26:41,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:41,866 INFO L276 IsEmpty]: Start isEmpty. Operand 5769 states and 24326 transitions. [2021-11-03 05:26:41,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:26:41,877 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:41,877 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:41,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:26:41,882 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-11-03 05:26:41,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:41,883 INFO L85 PathProgramCache]: Analyzing trace with hash -418902174, now seen corresponding path program 1 times [2021-11-03 05:26:41,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:41,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55395708] [2021-11-03 05:26:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:41,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:42,206 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:42,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55395708] [2021-11-03 05:26:42,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55395708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:42,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:42,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 05:26:42,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47088067] [2021-11-03 05:26:42,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:26:42,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:42,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:26:42,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:26:42,213 INFO L87 Difference]: Start difference. First operand 5769 states and 24326 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) 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) [2021-11-03 05:26:42,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:42,577 INFO L93 Difference]: Finished difference Result 11466 states and 48066 transitions. [2021-11-03 05:26:42,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:26:42,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) 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 [2021-11-03 05:26:42,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:42,953 INFO L225 Difference]: With dead ends: 11466 [2021-11-03 05:26:42,953 INFO L226 Difference]: Without dead ends: 11466 [2021-11-03 05:26:42,954 INFO L786 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 [2021-11-03 05:26:43,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11466 states. [2021-11-03 05:26:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11466 to 7584. [2021-11-03 05:26:43,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7584 states, 7584 states have (on average 4.150184599156118) internal successors, (31475), 7583 states have internal predecessors, (31475), 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) [2021-11-03 05:26:43,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 31475 transitions. [2021-11-03 05:26:43,852 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 31475 transitions. Word has length 11 [2021-11-03 05:26:43,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:43,853 INFO L470 AbstractCegarLoop]: Abstraction has 7584 states and 31475 transitions. [2021-11-03 05:26:43,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) 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) [2021-11-03 05:26:43,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 31475 transitions. [2021-11-03 05:26:43,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 05:26:43,860 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:43,860 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:43,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 05:26:43,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-11-03 05:26:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:43,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1893497405, now seen corresponding path program 1 times [2021-11-03 05:26:43,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:43,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194442956] [2021-11-03 05:26:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:43,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:44,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:44,155 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:44,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194442956] [2021-11-03 05:26:44,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194442956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:44,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:44,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:26:44,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093221103] [2021-11-03 05:26:44,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:26:44,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:44,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:26:44,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:26:44,164 INFO L87 Difference]: Start difference. First operand 7584 states and 31475 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-11-03 05:26:44,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:44,615 INFO L93 Difference]: Finished difference Result 13736 states and 54886 transitions. [2021-11-03 05:26:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:26:44,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2021-11-03 05:26:44,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:44,750 INFO L225 Difference]: With dead ends: 13736 [2021-11-03 05:26:44,751 INFO L226 Difference]: Without dead ends: 13736 [2021-11-03 05:26:44,751 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:26:44,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2021-11-03 05:26:45,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 10944. [2021-11-03 05:26:45,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10944 states, 10943 states have (on average 4.051905327606689) internal successors, (44340), 10943 states have internal predecessors, (44340), 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) [2021-11-03 05:26:45,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10944 states to 10944 states and 44340 transitions. [2021-11-03 05:26:45,533 INFO L78 Accepts]: Start accepts. Automaton has 10944 states and 44340 transitions. Word has length 13 [2021-11-03 05:26:45,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:45,533 INFO L470 AbstractCegarLoop]: Abstraction has 10944 states and 44340 transitions. [2021-11-03 05:26:45,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-11-03 05:26:45,534 INFO L276 IsEmpty]: Start isEmpty. Operand 10944 states and 44340 transitions. [2021-11-03 05:26:45,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 05:26:45,537 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:45,538 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:45,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 05:26:45,538 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-11-03 05:26:45,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:45,539 INFO L85 PathProgramCache]: Analyzing trace with hash 612798869, now seen corresponding path program 1 times [2021-11-03 05:26:45,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:45,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422353741] [2021-11-03 05:26:45,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:45,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:45,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:45,711 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:45,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422353741] [2021-11-03 05:26:45,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422353741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:45,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:45,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 05:26:45,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596263276] [2021-11-03 05:26:45,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:26:45,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:45,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:26:45,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:26:45,714 INFO L87 Difference]: Start difference. First operand 10944 states and 44340 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-03 05:26:45,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:45,900 INFO L93 Difference]: Finished difference Result 11679 states and 46629 transitions. [2021-11-03 05:26:45,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:26:45,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-03 05:26:45,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:46,149 INFO L225 Difference]: With dead ends: 11679 [2021-11-03 05:26:46,149 INFO L226 Difference]: Without dead ends: 11679 [2021-11-03 05:26:46,150 INFO L786 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 [2021-11-03 05:26:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11679 states. [2021-11-03 05:26:46,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11679 to 10656. [2021-11-03 05:26:46,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10656 states, 10655 states have (on average 4.008916001877053) internal successors, (42715), 10655 states have internal predecessors, (42715), 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) [2021-11-03 05:26:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10656 states to 10656 states and 42715 transitions. [2021-11-03 05:26:46,756 INFO L78 Accepts]: Start accepts. Automaton has 10656 states and 42715 transitions. Word has length 15 [2021-11-03 05:26:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:46,757 INFO L470 AbstractCegarLoop]: Abstraction has 10656 states and 42715 transitions. [2021-11-03 05:26:46,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-03 05:26:46,757 INFO L276 IsEmpty]: Start isEmpty. Operand 10656 states and 42715 transitions. [2021-11-03 05:26:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 05:26:46,766 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:46,766 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:46,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 05:26:46,766 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-11-03 05:26:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:46,768 INFO L85 PathProgramCache]: Analyzing trace with hash 82770040, now seen corresponding path program 1 times [2021-11-03 05:26:46,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:46,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110278011] [2021-11-03 05:26:46,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:46,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:46,999 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:46,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110278011] [2021-11-03 05:26:46,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110278011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:46,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:47,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:26:47,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360304670] [2021-11-03 05:26:47,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:26:47,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:47,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:26:47,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:26:47,003 INFO L87 Difference]: Start difference. First operand 10656 states and 42715 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:47,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:47,073 INFO L93 Difference]: Finished difference Result 2557 states and 8688 transitions. [2021-11-03 05:26:47,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:26:47,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-03 05:26:47,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:47,087 INFO L225 Difference]: With dead ends: 2557 [2021-11-03 05:26:47,087 INFO L226 Difference]: Without dead ends: 2557 [2021-11-03 05:26:47,087 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:26:47,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2021-11-03 05:26:47,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 1727. [2021-11-03 05:26:47,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1726 states have (on average 3.362108922363847) internal successors, (5803), 1726 states have internal predecessors, (5803), 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) [2021-11-03 05:26:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 5803 transitions. [2021-11-03 05:26:47,309 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 5803 transitions. Word has length 18 [2021-11-03 05:26:47,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:47,309 INFO L470 AbstractCegarLoop]: Abstraction has 1727 states and 5803 transitions. [2021-11-03 05:26:47,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:47,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 5803 transitions. [2021-11-03 05:26:47,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 05:26:47,312 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:47,312 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:47,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 05:26:47,313 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-11-03 05:26:47,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:47,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1413456820, now seen corresponding path program 1 times [2021-11-03 05:26:47,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:47,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418652461] [2021-11-03 05:26:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:47,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:47,439 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:47,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418652461] [2021-11-03 05:26:47,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418652461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:47,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:47,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:26:47,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342636288] [2021-11-03 05:26:47,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:26:47,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:47,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:26:47,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:26:47,446 INFO L87 Difference]: Start difference. First operand 1727 states and 5803 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:47,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:47,528 INFO L93 Difference]: Finished difference Result 1388 states and 4482 transitions. [2021-11-03 05:26:47,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:26:47,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-03 05:26:47,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:47,536 INFO L225 Difference]: With dead ends: 1388 [2021-11-03 05:26:47,536 INFO L226 Difference]: Without dead ends: 1388 [2021-11-03 05:26:47,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:26:47,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2021-11-03 05:26:47,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1364. [2021-11-03 05:26:47,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1362 states have (on average 3.2415565345080766) internal successors, (4415), 1363 states have internal predecessors, (4415), 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) [2021-11-03 05:26:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 4415 transitions. [2021-11-03 05:26:47,649 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 4415 transitions. Word has length 18 [2021-11-03 05:26:47,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:47,650 INFO L470 AbstractCegarLoop]: Abstraction has 1364 states and 4415 transitions. [2021-11-03 05:26:47,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:47,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 4415 transitions. [2021-11-03 05:26:47,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 05:26:47,653 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:47,656 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:47,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 05:26:47,657 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-11-03 05:26:47,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:47,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1231611704, now seen corresponding path program 1 times [2021-11-03 05:26:47,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:47,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260656153] [2021-11-03 05:26:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:47,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:47,843 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:47,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260656153] [2021-11-03 05:26:47,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260656153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:47,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:47,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-03 05:26:47,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349558570] [2021-11-03 05:26:47,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:26:47,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:47,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:26:47,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:26:47,846 INFO L87 Difference]: Start difference. First operand 1364 states and 4415 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-11-03 05:26:48,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:48,293 INFO L93 Difference]: Finished difference Result 3984 states and 12581 transitions. [2021-11-03 05:26:48,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-03 05:26:48,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 20 [2021-11-03 05:26:48,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:48,310 INFO L225 Difference]: With dead ends: 3984 [2021-11-03 05:26:48,311 INFO L226 Difference]: Without dead ends: 3984 [2021-11-03 05:26:48,311 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2021-11-03 05:26:48,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3984 states. [2021-11-03 05:26:48,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 2235. [2021-11-03 05:26:48,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 2233 states have (on average 3.22704881325571) internal successors, (7206), 2234 states have internal predecessors, (7206), 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) [2021-11-03 05:26:48,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 7206 transitions. [2021-11-03 05:26:48,400 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 7206 transitions. Word has length 20 [2021-11-03 05:26:48,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:48,401 INFO L470 AbstractCegarLoop]: Abstraction has 2235 states and 7206 transitions. [2021-11-03 05:26:48,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-11-03 05:26:48,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 7206 transitions. [2021-11-03 05:26:48,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 05:26:48,405 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:48,405 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:48,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 05:26:48,406 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-11-03 05:26:48,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1522002625, now seen corresponding path program 1 times [2021-11-03 05:26:48,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:48,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20378040] [2021-11-03 05:26:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:48,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:48,536 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:48,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20378040] [2021-11-03 05:26:48,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20378040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:48,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:48,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:26:48,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718556982] [2021-11-03 05:26:48,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:26:48,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:48,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:26:48,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:26:48,539 INFO L87 Difference]: Start difference. First operand 2235 states and 7206 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:48,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:48,664 INFO L93 Difference]: Finished difference Result 2531 states and 8111 transitions. [2021-11-03 05:26:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:26:48,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-03 05:26:48,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:48,679 INFO L225 Difference]: With dead ends: 2531 [2021-11-03 05:26:48,679 INFO L226 Difference]: Without dead ends: 2531 [2021-11-03 05:26:48,679 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:26:48,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2021-11-03 05:26:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 2232. [2021-11-03 05:26:48,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2232 states, 2230 states have (on average 3.222421524663677) internal successors, (7186), 2231 states have internal predecessors, (7186), 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) [2021-11-03 05:26:48,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 7186 transitions. [2021-11-03 05:26:48,769 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 7186 transitions. Word has length 22 [2021-11-03 05:26:48,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:48,770 INFO L470 AbstractCegarLoop]: Abstraction has 2232 states and 7186 transitions. [2021-11-03 05:26:48,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:48,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 7186 transitions. [2021-11-03 05:26:48,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 05:26:48,777 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:48,778 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:48,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-03 05:26:48,778 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-11-03 05:26:48,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:48,779 INFO L85 PathProgramCache]: Analyzing trace with hash 547753617, now seen corresponding path program 1 times [2021-11-03 05:26:48,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:26:48,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031576949] [2021-11-03 05:26:48,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:48,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:26:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 05:26:49,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:26:49,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031576949] [2021-11-03 05:26:49,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031576949] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 05:26:49,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371966951] [2021-11-03 05:26:49,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:49,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:26:49,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:26:49,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:26:49,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 05:26:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:49,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 05:26:49,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:26:49,618 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 05:26:49,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:26:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 05:26:49,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371966951] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:26:49,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [451037613] [2021-11-03 05:26:49,963 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:609) 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) [2021-11-03 05:26:49,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 05:26:49,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2021-11-03 05:26:49,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926079585] [2021-11-03 05:26:49,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:26:49,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:26:49,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:26:49,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:26:49,969 INFO L87 Difference]: Start difference. First operand 2232 states and 7186 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-11-03 05:26:50,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:50,446 INFO L93 Difference]: Finished difference Result 2730 states and 8517 transitions. [2021-11-03 05:26:50,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 05:26:50,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 31 [2021-11-03 05:26:50,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:50,447 INFO L225 Difference]: With dead ends: 2730 [2021-11-03 05:26:50,447 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 05:26:50,448 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-11-03 05:26:50,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 05:26:50,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 05:26:50,449 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) [2021-11-03 05:26:50,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 05:26:50,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-11-03 05:26:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:50,449 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 05:26:50,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-11-03 05:26:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 05:26:50,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 05:26:50,455 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:26:50,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 05:26:50,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 05:26:50,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-03 05:26:50,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:26:50,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:26:50,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 05:26:50,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:26:50,680 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:50,683 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 05:26:50,683 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:26:50,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:26:50 BasicIcfg [2021-11-03 05:26:50,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:26:50,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:26:50,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:26:50,686 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:26:50,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:26:31" (3/4) ... [2021-11-03 05:26:50,689 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 05:26:50,694 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure process [2021-11-03 05:26:50,694 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure dispose [2021-11-03 05:26:50,694 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure generate [2021-11-03 05:26:50,699 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-03 05:26:50,699 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 05:26:50,699 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 05:26:50,700 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 05:26:50,737 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 05:26:50,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:26:50,739 INFO L168 Benchmark]: Toolchain (without parser) took 20845.99 ms. Allocated memory was 90.2 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 57.4 MB in the beginning and 1.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 342.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:26:50,739 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:26:50,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 940.47 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 57.0 MB in the beginning and 82.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:26:50,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.38 ms. Allocated memory is still 111.1 MB. Free memory was 82.4 MB in the beginning and 80.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:26:50,741 INFO L168 Benchmark]: Boogie Preprocessor took 97.92 ms. Allocated memory is still 111.1 MB. Free memory was 80.2 MB in the beginning and 77.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:26:50,741 INFO L168 Benchmark]: RCFGBuilder took 840.91 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 59.2 MB in the end (delta: 18.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:26:50,742 INFO L168 Benchmark]: TraceAbstraction took 18801.94 ms. Allocated memory was 111.1 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 58.7 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 317.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:26:50,742 INFO L168 Benchmark]: Witness Printer took 51.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:26:50,744 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 940.47 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 57.0 MB in the beginning and 82.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.38 ms. Allocated memory is still 111.1 MB. Free memory was 82.4 MB in the beginning and 80.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.92 ms. Allocated memory is still 111.1 MB. Free memory was 80.2 MB in the beginning and 77.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 840.91 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 59.2 MB in the end (delta: 18.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18801.94 ms. Allocated memory was 111.1 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 58.7 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 317.9 MB. Max. memory is 16.1 GB. * Witness Printer took 51.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7s, 147 PlacesBefore, 51 PlacesAfterwards, 149 TransitionsBefore, 49 TransitionsAfterwards, 8580 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 4 ChoiceCompositions, 128 TotalNumberOfCompositions, 20486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10075, positive: 9689, positive conditional: 0, positive unconditional: 9689, negative: 386, negative conditional: 0, negative unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6002, positive: 5884, positive conditional: 0, positive unconditional: 5884, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6002, positive: 5708, positive conditional: 0, positive unconditional: 5708, negative: 294, negative conditional: 0, negative unconditional: 294, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 294, positive: 176, positive conditional: 0, positive unconditional: 176, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 555, positive: 243, positive conditional: 0, positive unconditional: 243, negative: 312, negative conditional: 0, negative unconditional: 312, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10075, positive: 3805, positive conditional: 0, positive unconditional: 3805, negative: 268, negative conditional: 0, negative unconditional: 268, unknown: 6002, unknown conditional: 0, unknown unconditional: 6002] , Statistics on independence cache: Total cache size (in pairs): 545, Positive cache size: 493, Positive conditional cache size: 0, Positive unconditional cache size: 493, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52 - 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 7 procedures, 204 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 18.6s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 545 SDtfs, 765 SDslu, 1279 SDs, 0 SdLazy, 730 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 66 SyntacticMatches, 7 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10944occurred in iteration=3, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 10830 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 1394 SizeOfPredicates, 7 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 18/24 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! [2021-11-03 05:26:50,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6907a658-6aa0-4596-b949-11f8b27b29b8/bin/utaipan-aC7eJsxGYH/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