./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 11:04:49,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:04:49,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:04:49,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:04:49,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:04:49,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:04:49,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:04:49,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:04:49,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:04:49,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:04:49,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:04:49,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:04:49,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:04:49,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:04:49,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:04:49,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:04:49,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:04:49,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:04:49,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:04:49,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:04:49,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:04:49,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:04:49,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:04:49,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:04:49,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:04:49,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:04:49,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:04:49,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:04:49,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:04:49,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:04:49,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:04:49,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:04:49,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:04:49,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:04:49,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:04:49,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:04:49,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:04:49,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:04:49,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:04:49,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:04:49,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:04:49,525 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 11:04:49,571 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:04:49,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:04:49,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:04:49,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:04:49,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:04:49,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:04:49,575 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:04:49,575 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 11:04:49,576 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 11:04:49,576 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 11:04:49,577 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 11:04:49,577 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 11:04:49,578 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 11:04:49,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:04:49,578 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:04:49,579 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:04:49,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:04:49,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:04:49,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:04:49,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 11:04:49,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 11:04:49,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 11:04:49,580 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:04:49,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:04:49,581 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 11:04:49,581 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:04:49,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 11:04:49,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:04:49,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:04:49,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:04:49,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:04:49,584 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 11:04:49,584 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 [2022-10-17 11:04:49,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:04:49,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:04:49,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:04:49,996 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:04:49,997 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:04:49,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/locks/test_locks_5.c [2022-10-17 11:04:50,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/data/e6c038c3f/b8874bb0224b45339e2ff0e8864ad9b5/FLAG56cedd65f [2022-10-17 11:04:50,591 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:04:50,592 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/sv-benchmarks/c/locks/test_locks_5.c [2022-10-17 11:04:50,603 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/data/e6c038c3f/b8874bb0224b45339e2ff0e8864ad9b5/FLAG56cedd65f [2022-10-17 11:04:50,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/data/e6c038c3f/b8874bb0224b45339e2ff0e8864ad9b5 [2022-10-17 11:04:50,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:04:50,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:04:50,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:04:50,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:04:50,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:04:50,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:50,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c8f4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50, skipping insertion in model container [2022-10-17 11:04:50,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:50,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:04:51,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:04:51,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/sv-benchmarks/c/locks/test_locks_5.c[2207,2220] [2022-10-17 11:04:51,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:04:51,322 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:04:51,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/sv-benchmarks/c/locks/test_locks_5.c[2207,2220] [2022-10-17 11:04:51,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:04:51,392 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:04:51,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51 WrapperNode [2022-10-17 11:04:51,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:04:51,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:04:51,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:04:51,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:04:51,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,449 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2022-10-17 11:04:51,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:04:51,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:04:51,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:04:51,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:04:51,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,497 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:04:51,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:04:51,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:04:51,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:04:51,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (1/1) ... [2022-10-17 11:04:51,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:51,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:51,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:51,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 11:04:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:04:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:04:51,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:04:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:04:51,709 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:04:51,712 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:04:51,895 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:04:51,903 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:04:51,903 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 11:04:51,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:51 BoogieIcfgContainer [2022-10-17 11:04:51,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:04:51,907 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 11:04:51,907 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 11:04:51,932 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 11:04:51,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:04:51,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 11:04:50" (1/3) ... [2022-10-17 11:04:51,934 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57bd483a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 11:04:51, skipping insertion in model container [2022-10-17 11:04:51,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:04:51,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:51" (2/3) ... [2022-10-17 11:04:51,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57bd483a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 11:04:51, skipping insertion in model container [2022-10-17 11:04:51,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:04:51,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:51" (3/3) ... [2022-10-17 11:04:51,950 INFO L332 chiAutomizerObserver]: Analyzing ICFG test_locks_5.c [2022-10-17 11:04:52,043 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 11:04:52,043 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 11:04:52,043 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 11:04:52,043 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 11:04:52,043 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 11:04:52,044 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 11:04:52,044 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 11:04:52,044 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 11:04:52,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 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) [2022-10-17 11:04:52,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2022-10-17 11:04:52,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:52,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:52,108 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:04:52,108 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:52,108 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 11:04:52,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 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) [2022-10-17 11:04:52,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2022-10-17 11:04:52,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:52,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:52,112 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:04:52,112 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:52,121 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 7#L85-1true [2022-10-17 11:04:52,122 INFO L750 eck$LassoCheckResult]: Loop: 7#L85-1true assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 22#L28true assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 8#L43true assume 0 != main_~p1~0#1;main_~lk1~0#1 := 1; 9#L43-2true assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 18#L47-1true assume !(0 != main_~p3~0#1); 16#L51-1true assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 17#L55-1true assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 20#L59-1true assume !(0 != main_~p1~0#1); 10#L65-1true assume !(0 != main_~p2~0#1); 19#L70-1true assume !(0 != main_~p3~0#1); 21#L75-1true assume !(0 != main_~p4~0#1); 23#L80-1true assume !(0 != main_~p5~0#1); 7#L85-1true [2022-10-17 11:04:52,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:52,130 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 11:04:52,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:52,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352102742] [2022-10-17 11:04:52,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:52,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:52,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:52,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:52,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:52,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2089480461, now seen corresponding path program 1 times [2022-10-17 11:04:52,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:52,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675786523] [2022-10-17 11:04:52,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:52,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:52,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:52,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:52,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675786523] [2022-10-17 11:04:52,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675786523] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:52,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:52,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:04:52,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326534846] [2022-10-17 11:04:52,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:52,451 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:04:52,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:52,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:04:52,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:04:52,500 INFO L87 Difference]: Start difference. First operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:52,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:52,569 INFO L93 Difference]: Finished difference Result 45 states and 70 transitions. [2022-10-17 11:04:52,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 70 transitions. [2022-10-17 11:04:52,588 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2022-10-17 11:04:52,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 35 states and 53 transitions. [2022-10-17 11:04:52,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2022-10-17 11:04:52,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2022-10-17 11:04:52,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 53 transitions. [2022-10-17 11:04:52,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:04:52,597 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 53 transitions. [2022-10-17 11:04:52,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 53 transitions. [2022-10-17 11:04:52,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-10-17 11:04:52,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 34 states have internal predecessors, (53), 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) [2022-10-17 11:04:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions. [2022-10-17 11:04:52,630 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 53 transitions. [2022-10-17 11:04:52,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:04:52,635 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2022-10-17 11:04:52,636 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 11:04:52,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 53 transitions. [2022-10-17 11:04:52,638 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2022-10-17 11:04:52,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:52,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:52,638 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:04:52,639 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:52,639 INFO L748 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 81#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 79#L85-1 [2022-10-17 11:04:52,639 INFO L750 eck$LassoCheckResult]: Loop: 79#L85-1 assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 84#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 100#L43 assume !(0 != main_~p1~0#1); 87#L43-2 assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 88#L47-1 assume !(0 != main_~p3~0#1); 93#L51-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 94#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 95#L59-1 assume !(0 != main_~p1~0#1); 101#L65-1 assume !(0 != main_~p2~0#1); 111#L70-1 assume !(0 != main_~p3~0#1); 98#L75-1 assume !(0 != main_~p4~0#1); 92#L80-1 assume !(0 != main_~p5~0#1); 79#L85-1 [2022-10-17 11:04:52,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:52,640 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-10-17 11:04:52,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:52,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121264934] [2022-10-17 11:04:52,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:52,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:52,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:52,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:52,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:52,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1812459825, now seen corresponding path program 1 times [2022-10-17 11:04:52,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:52,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650852918] [2022-10-17 11:04:52,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:52,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:52,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:52,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650852918] [2022-10-17 11:04:52,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650852918] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:52,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:52,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:04:52,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463458962] [2022-10-17 11:04:52,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:52,770 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:04:52,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:52,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:04:52,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:04:52,772 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:52,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:52,794 INFO L93 Difference]: Finished difference Result 66 states and 98 transitions. [2022-10-17 11:04:52,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 98 transitions. [2022-10-17 11:04:52,799 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2022-10-17 11:04:52,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 98 transitions. [2022-10-17 11:04:52,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2022-10-17 11:04:52,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2022-10-17 11:04:52,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 98 transitions. [2022-10-17 11:04:52,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:04:52,808 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2022-10-17 11:04:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 98 transitions. [2022-10-17 11:04:52,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-10-17 11:04:52,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 65 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:52,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions. [2022-10-17 11:04:52,819 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2022-10-17 11:04:52,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:04:52,821 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2022-10-17 11:04:52,821 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 11:04:52,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 98 transitions. [2022-10-17 11:04:52,824 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2022-10-17 11:04:52,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:52,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:52,825 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:04:52,825 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:52,826 INFO L748 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 190#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 200#L85-1 [2022-10-17 11:04:52,826 INFO L750 eck$LassoCheckResult]: Loop: 200#L85-1 assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 224#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 222#L43 assume !(0 != main_~p1~0#1); 219#L43-2 assume !(0 != main_~p2~0#1); 217#L47-1 assume !(0 != main_~p3~0#1); 215#L51-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 214#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 212#L59-1 assume !(0 != main_~p1~0#1); 213#L65-1 assume !(0 != main_~p2~0#1); 235#L70-1 assume !(0 != main_~p3~0#1); 231#L75-1 assume !(0 != main_~p4~0#1); 228#L80-1 assume !(0 != main_~p5~0#1); 200#L85-1 [2022-10-17 11:04:52,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-10-17 11:04:52,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:52,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943249424] [2022-10-17 11:04:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:52,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:52,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:52,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:52,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:52,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1802449101, now seen corresponding path program 1 times [2022-10-17 11:04:52,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:52,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571034487] [2022-10-17 11:04:52,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:52,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:52,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:52,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:52,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571034487] [2022-10-17 11:04:52,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571034487] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:52,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:52,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:04:52,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274066116] [2022-10-17 11:04:52,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:52,930 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:04:52,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:52,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:04:52,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:04:52,931 INFO L87 Difference]: Start difference. First operand 66 states and 98 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:52,966 INFO L93 Difference]: Finished difference Result 126 states and 182 transitions. [2022-10-17 11:04:52,966 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 182 transitions. [2022-10-17 11:04:52,971 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2022-10-17 11:04:52,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 182 transitions. [2022-10-17 11:04:52,982 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2022-10-17 11:04:52,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2022-10-17 11:04:52,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 182 transitions. [2022-10-17 11:04:52,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:04:52,987 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 182 transitions. [2022-10-17 11:04:52,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 182 transitions. [2022-10-17 11:04:52,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-10-17 11:04:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 125 states have internal predecessors, (182), 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) [2022-10-17 11:04:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 182 transitions. [2022-10-17 11:04:53,006 INFO L240 hiAutomatonCegarLoop]: Abstraction has 126 states and 182 transitions. [2022-10-17 11:04:53,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:04:53,008 INFO L428 stractBuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2022-10-17 11:04:53,008 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 11:04:53,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 182 transitions. [2022-10-17 11:04:53,012 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2022-10-17 11:04:53,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:53,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:53,013 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:04:53,013 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:53,013 INFO L748 eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 386#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 400#L85-1 [2022-10-17 11:04:53,013 INFO L750 eck$LassoCheckResult]: Loop: 400#L85-1 assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 435#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 431#L43 assume !(0 != main_~p1~0#1); 428#L43-2 assume !(0 != main_~p2~0#1); 426#L47-1 assume !(0 != main_~p3~0#1); 425#L51-1 assume !(0 != main_~p4~0#1); 421#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 422#L59-1 assume !(0 != main_~p1~0#1); 447#L65-1 assume !(0 != main_~p2~0#1); 445#L70-1 assume !(0 != main_~p3~0#1); 442#L75-1 assume !(0 != main_~p4~0#1); 439#L80-1 assume !(0 != main_~p5~0#1); 400#L85-1 [2022-10-17 11:04:53,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:53,014 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-10-17 11:04:53,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:53,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636310736] [2022-10-17 11:04:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:53,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:53,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash -27441739, now seen corresponding path program 1 times [2022-10-17 11:04:53,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:53,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185485158] [2022-10-17 11:04:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:53,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:53,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:53,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:53,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185485158] [2022-10-17 11:04:53,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185485158] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:53,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:53,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:04:53,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009134361] [2022-10-17 11:04:53,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:53,069 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:04:53,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:53,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:04:53,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:04:53,070 INFO L87 Difference]: Start difference. First operand 126 states and 182 transitions. cyclomatic complexity: 64 Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:04:53,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:53,102 INFO L93 Difference]: Finished difference Result 242 states and 338 transitions. [2022-10-17 11:04:53,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 242 states and 338 transitions. [2022-10-17 11:04:53,108 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2022-10-17 11:04:53,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 242 states to 242 states and 338 transitions. [2022-10-17 11:04:53,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 242 [2022-10-17 11:04:53,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 242 [2022-10-17 11:04:53,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 242 states and 338 transitions. [2022-10-17 11:04:53,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:04:53,126 INFO L218 hiAutomatonCegarLoop]: Abstraction has 242 states and 338 transitions. [2022-10-17 11:04:53,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states and 338 transitions. [2022-10-17 11:04:53,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-10-17 11:04:53,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.396694214876033) internal successors, (338), 241 states have internal predecessors, (338), 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) [2022-10-17 11:04:53,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 338 transitions. [2022-10-17 11:04:53,161 INFO L240 hiAutomatonCegarLoop]: Abstraction has 242 states and 338 transitions. [2022-10-17 11:04:53,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:04:53,169 INFO L428 stractBuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2022-10-17 11:04:53,169 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 11:04:53,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 338 transitions. [2022-10-17 11:04:53,181 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2022-10-17 11:04:53,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:53,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:53,182 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:04:53,182 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:53,182 INFO L748 eck$LassoCheckResult]: Stem: 759#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 760#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 773#L85-1 [2022-10-17 11:04:53,183 INFO L750 eck$LassoCheckResult]: Loop: 773#L85-1 assume !false;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 836#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 833#L43 assume !(0 != main_~p1~0#1); 829#L43-2 assume !(0 != main_~p2~0#1); 826#L47-1 assume !(0 != main_~p3~0#1); 820#L51-1 assume !(0 != main_~p4~0#1); 795#L55-1 assume !(0 != main_~p5~0#1); 796#L59-1 assume !(0 != main_~p1~0#1); 853#L65-1 assume !(0 != main_~p2~0#1); 842#L70-1 assume !(0 != main_~p3~0#1); 821#L75-1 assume !(0 != main_~p4~0#1); 823#L80-1 assume !(0 != main_~p5~0#1); 773#L85-1 [2022-10-17 11:04:53,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:53,183 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2022-10-17 11:04:53,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:53,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517803524] [2022-10-17 11:04:53,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:53,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:53,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:53,211 INFO L85 PathProgramCache]: Analyzing trace with hash 29816563, now seen corresponding path program 1 times [2022-10-17 11:04:53,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:53,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920112479] [2022-10-17 11:04:53,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:53,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:53,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:53,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1243965365, now seen corresponding path program 1 times [2022-10-17 11:04:53,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:53,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960676390] [2022-10-17 11:04:53,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:53,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:53,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 11:04:53 BoogieIcfgContainer [2022-10-17 11:04:53,620 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 11:04:53,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 11:04:53,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 11:04:53,621 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 11:04:53,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:51" (3/4) ... [2022-10-17 11:04:53,625 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-10-17 11:04:53,682 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 11:04:53,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 11:04:53,684 INFO L158 Benchmark]: Toolchain (without parser) took 2724.26ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 49.8MB in the beginning and 80.3MB in the end (delta: -30.5MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-10-17 11:04:53,684 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 90.2MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:04:53,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.29ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 49.6MB in the beginning and 99.9MB in the end (delta: -50.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 11:04:53,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.80ms. Allocated memory is still 125.8MB. Free memory was 99.3MB in the beginning and 97.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:04:53,686 INFO L158 Benchmark]: Boogie Preprocessor took 51.70ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 97.2MB in the end (delta: 613.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:04:53,687 INFO L158 Benchmark]: RCFGBuilder took 402.44ms. Allocated memory is still 125.8MB. Free memory was 96.6MB in the beginning and 86.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 11:04:53,688 INFO L158 Benchmark]: BuchiAutomizer took 1713.17ms. Allocated memory is still 125.8MB. Free memory was 85.8MB in the beginning and 81.6MB in the end (delta: 4.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-10-17 11:04:53,688 INFO L158 Benchmark]: Witness Printer took 61.79ms. Allocated memory is still 125.8MB. Free memory was 81.6MB in the beginning and 80.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:04:53,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 90.2MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.29ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 49.6MB in the beginning and 99.9MB in the end (delta: -50.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.80ms. Allocated memory is still 125.8MB. Free memory was 99.3MB in the beginning and 97.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.70ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 97.2MB in the end (delta: 613.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 402.44ms. Allocated memory is still 125.8MB. Free memory was 96.6MB in the beginning and 86.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1713.17ms. Allocated memory is still 125.8MB. Free memory was 85.8MB in the beginning and 81.6MB in the end (delta: 4.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 61.79ms. Allocated memory is still 125.8MB. Free memory was 81.6MB in the beginning and 80.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 242 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 277 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 177 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 26]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L24] int cond; Loop: [L26] COND TRUE 1 [L27] cond = __VERIFIER_nondet_int() [L28] COND FALSE !(cond == 0) [L31] lk1 = 0 [L33] lk2 = 0 [L35] lk3 = 0 [L37] lk4 = 0 [L39] lk5 = 0 [L43] COND FALSE !(p1 != 0) [L47] COND FALSE !(p2 != 0) [L51] COND FALSE !(p3 != 0) [L55] COND FALSE !(p4 != 0) [L59] COND FALSE !(p5 != 0) [L65] COND FALSE !(p1 != 0) [L70] COND FALSE !(p2 != 0) [L75] COND FALSE !(p3 != 0) [L80] COND FALSE !(p4 != 0) [L85] COND FALSE !(p5 != 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L24] int cond; Loop: [L26] COND TRUE 1 [L27] cond = __VERIFIER_nondet_int() [L28] COND FALSE !(cond == 0) [L31] lk1 = 0 [L33] lk2 = 0 [L35] lk3 = 0 [L37] lk4 = 0 [L39] lk5 = 0 [L43] COND FALSE !(p1 != 0) [L47] COND FALSE !(p2 != 0) [L51] COND FALSE !(p3 != 0) [L55] COND FALSE !(p4 != 0) [L59] COND FALSE !(p5 != 0) [L65] COND FALSE !(p1 != 0) [L70] COND FALSE !(p2 != 0) [L75] COND FALSE !(p3 != 0) [L80] COND FALSE !(p4 != 0) [L85] COND FALSE !(p5 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 11:04:53,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec3fe0c4-28f4-4030-8a69-0291a2c0bbbe/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)