./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9b7bdc3716d678e688a56b46e7747808e1f8c43e ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:03:10,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:03:10,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:03:10,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:03:10,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:03:10,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:03:10,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:03:10,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:03:10,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:03:10,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:03:10,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:03:10,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:03:10,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:03:10,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:03:10,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:03:10,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:03:10,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:03:10,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:03:10,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:03:10,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:03:10,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:03:10,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:03:10,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:03:10,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:03:10,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:03:10,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:03:10,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:03:10,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:03:10,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:03:10,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:03:10,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:03:10,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:03:10,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:03:10,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:03:10,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:03:10,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:03:10,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:03:10,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:03:10,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:03:10,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:03:10,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:03:10,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 20:03:10,720 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:03:10,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:03:10,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:03:10,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:03:10,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:03:10,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:03:10,731 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:03:10,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:03:10,731 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:03:10,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:03:10,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:03:10,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:03:10,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 20:03:10,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 20:03:10,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 20:03:10,734 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:03:10,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:03:10,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:03:10,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 20:03:10,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:03:10,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:03:10,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 20:03:10,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:03:10,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:03:10,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 20:03:10,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 20:03:10,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:03:10,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 20:03:10,737 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 20:03:10,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 20:03:10,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 20:03:10,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:03:10,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b7bdc3716d678e688a56b46e7747808e1f8c43e [2021-10-15 20:03:11,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:03:11,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:03:11,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:03:11,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:03:11,097 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:03:11,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2021-10-15 20:03:11,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/data/988080fcb/44cba22b738b4739ad8ea53c5a3d4da8/FLAGc272dff0d [2021-10-15 20:03:11,814 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:03:11,815 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2021-10-15 20:03:11,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/data/988080fcb/44cba22b738b4739ad8ea53c5a3d4da8/FLAGc272dff0d [2021-10-15 20:03:12,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/data/988080fcb/44cba22b738b4739ad8ea53c5a3d4da8 [2021-10-15 20:03:12,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:03:12,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:03:12,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:03:12,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:03:12,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:03:12,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:12,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791a45ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12, skipping insertion in model container [2021-10-15 20:03:12,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:12,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:03:12,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:03:12,584 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_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c[38357,38370] [2021-10-15 20:03:12,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:03:12,644 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:03:12,813 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_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c[38357,38370] [2021-10-15 20:03:12,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:03:12,859 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:03:12,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12 WrapperNode [2021-10-15 20:03:12,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:03:12,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:03:12,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:03:12,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:03:12,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:12,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:13,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:03:13,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:03:13,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:03:13,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:03:13,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:13,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:13,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:13,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:13,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:13,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:13,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:13,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:03:13,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:03:13,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:03:13,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:03:13,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (1/1) ... [2021-10-15 20:03:13,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:03:13,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:13,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:13,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 20:03:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-15 20:03:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-10-15 20:03:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:03:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:03:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:03:13,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:03:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 20:03:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 20:03:15,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:03:15,900 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-15 20:03:15,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:03:15 BoogieIcfgContainer [2021-10-15 20:03:15,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:03:15,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 20:03:15,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 20:03:15,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 20:03:15,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:03:12" (1/3) ... [2021-10-15 20:03:15,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6736e212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:03:15, skipping insertion in model container [2021-10-15 20:03:15,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:12" (2/3) ... [2021-10-15 20:03:15,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6736e212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:03:15, skipping insertion in model container [2021-10-15 20:03:15,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:03:15" (3/3) ... [2021-10-15 20:03:15,913 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+nlh-reducer.c [2021-10-15 20:03:15,923 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 20:03:15,923 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 20:03:15,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 20:03:16,001 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 20:03:16,002 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 20:03:16,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 350 transitions, 700 flow [2021-10-15 20:03:16,171 INFO L129 PetriNetUnfolder]: 172/350 cut-off events. [2021-10-15 20:03:16,171 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:03:16,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 350 events. 172/350 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 177 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 0. Up to 173 conditions per place. [2021-10-15 20:03:16,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 350 transitions, 700 flow [2021-10-15 20:03:16,198 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 175 transitions, 350 flow [2021-10-15 20:03:16,228 INFO L129 PetriNetUnfolder]: 0/174 cut-off events. [2021-10-15 20:03:16,229 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:03:16,229 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:03:16,230 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:03:16,230 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:03:16,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:03:16,237 INFO L82 PathProgramCache]: Analyzing trace with hash 492676326, now seen corresponding path program 1 times [2021-10-15 20:03:16,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:03:16,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555869579] [2021-10-15 20:03:16,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:03:16,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:03:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:03:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:03:23,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:03:23,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555869579] [2021-10-15 20:03:23,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555869579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:03:23,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:03:23,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2021-10-15 20:03:23,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084612288] [2021-10-15 20:03:23,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-10-15 20:03:23,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:03:23,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-10-15 20:03:23,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=3644, Unknown=0, NotChecked=0, Total=3782 [2021-10-15 20:03:23,175 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 350 [2021-10-15 20:03:23,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 175 transitions, 350 flow. Second operand has 62 states, 62 states have (on average 50.096774193548384) internal successors, (3106), 62 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:23,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:03:23,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 350 [2021-10-15 20:03:23,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:03:55,639 INFO L129 PetriNetUnfolder]: 0/170 cut-off events. [2021-10-15 20:03:55,639 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:03:55,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 170 events. 0/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/171 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-10-15 20:03:55,642 INFO L132 encePairwiseOnDemand]: 306/350 looper letters, 0 selfloop transitions, 0 changer transitions 170/170 dead transitions. [2021-10-15 20:03:55,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 170 transitions, 596 flow [2021-10-15 20:03:55,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-15 20:03:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-10-15 20:03:55,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 2289 transitions. [2021-10-15 20:03:55,689 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.14533333333333334 [2021-10-15 20:03:55,691 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 2289 transitions. [2021-10-15 20:03:55,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 2289 transitions. [2021-10-15 20:03:55,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:03:55,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 2289 transitions. [2021-10-15 20:03:55,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 50.86666666666667) internal successors, (2289), 45 states have internal predecessors, (2289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:55,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 350.0) internal successors, (16100), 46 states have internal predecessors, (16100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:55,764 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 350.0) internal successors, (16100), 46 states have internal predecessors, (16100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:55,767 INFO L186 Difference]: Start difference. First operand has 176 places, 175 transitions, 350 flow. Second operand 45 states and 2289 transitions. [2021-10-15 20:03:55,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 170 transitions, 596 flow [2021-10-15 20:03:55,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 170 transitions, 596 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 20:03:55,778 INFO L242 Difference]: Finished difference. Result has 215 places, 0 transitions, 0 flow [2021-10-15 20:03:55,782 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=0, PETRI_PLACES=215, PETRI_TRANSITIONS=0} [2021-10-15 20:03:55,783 INFO L334 CegarLoopForPetriNet]: 176 programPoint places, 39 predicate places. [2021-10-15 20:03:55,784 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 0 transitions, 0 flow [2021-10-15 20:03:55,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 50.096774193548384) internal successors, (3106), 62 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:55,791 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:03:55,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 20:03:55,799 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 20:03:55,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:03:55 BoogieIcfgContainer [2021-10-15 20:03:55,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 20:03:55,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:03:55,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:03:55,809 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:03:55,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:03:15" (3/4) ... [2021-10-15 20:03:55,814 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 20:03:55,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 207 nodes and edges [2021-10-15 20:03:55,871 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-10-15 20:03:55,876 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-15 20:03:55,881 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-15 20:03:55,886 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 20:03:55,890 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 20:03:56,538 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 20:03:56,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:03:56,541 INFO L168 Benchmark]: Toolchain (without parser) took 44491.01 ms. Allocated memory was 100.7 MB in the beginning and 216.0 MB in the end (delta: 115.3 MB). Free memory was 67.6 MB in the beginning and 155.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 134.0 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:56,542 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 100.7 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:03:56,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.68 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 52.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:56,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.27 ms. Allocated memory is still 100.7 MB. Free memory was 52.7 MB in the beginning and 44.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:56,545 INFO L168 Benchmark]: Boogie Preprocessor took 199.09 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 44.3 MB in the beginning and 89.3 MB in the end (delta: -45.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:56,545 INFO L168 Benchmark]: RCFGBuilder took 2690.65 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 89.3 MB in the beginning and 84.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:56,546 INFO L168 Benchmark]: TraceAbstraction took 39902.31 ms. Allocated memory was 172.0 MB in the beginning and 216.0 MB in the end (delta: 44.0 MB). Free memory was 83.2 MB in the beginning and 66.1 MB in the end (delta: 17.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:56,547 INFO L168 Benchmark]: Witness Printer took 731.01 ms. Allocated memory is still 216.0 MB. Free memory was 66.1 MB in the beginning and 155.8 MB in the end (delta: -89.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:56,549 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 100.7 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 809.68 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 52.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 151.27 ms. Allocated memory is still 100.7 MB. Free memory was 52.7 MB in the beginning and 44.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 199.09 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 44.3 MB in the beginning and 89.3 MB in the end (delta: -45.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2690.65 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 89.3 MB in the beginning and 84.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 39902.31 ms. Allocated memory was 172.0 MB in the beginning and 216.0 MB in the end (delta: 44.0 MB). Free memory was 83.2 MB in the beginning and 66.1 MB in the end (delta: 17.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. * Witness Printer took 731.01 ms. Allocated memory is still 216.0 MB. Free memory was 66.1 MB in the beginning and 155.8 MB in the end (delta: -89.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1287]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 179 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 29.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 39810.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 32628.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 196.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 28 SDtfs, 35 SDslu, 1027 SDs, 0 SdLazy, 5450 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29720.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 3304.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.0ms SsaConstructionTime, 2227.7ms SatisfiabilityAnalysisTime, 4525.1ms InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 2828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 20:03:56,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5862d9-a0fe-40a9-b0d2-1b9247392de0/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...