./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f2a8d3919c0496882213752e07135061fdbafdf6 ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:33:18,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:33:18,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:33:18,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:33:18,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:33:18,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:33:18,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:33:18,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:33:18,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:33:18,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:33:18,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:33:18,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:33:18,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:33:18,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:33:18,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:33:18,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:33:18,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:33:18,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:33:18,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:33:18,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:33:18,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:33:18,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:33:18,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:33:18,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:33:18,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:33:18,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:33:18,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:33:18,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:33:18,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:33:18,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:33:18,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:33:18,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:33:18,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:33:18,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:33:18,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:33:18,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:33:18,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:33:18,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:33:18,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:33:18,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:33:18,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:33:18,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-10-11 00:33:18,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:33:18,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:33:18,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:33:18,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:33:18,164 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:33:18,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:33:18,164 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:33:18,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:33:18,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:33:18,165 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 00:33:18,165 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 00:33:18,165 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 00:33:18,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:33:18,166 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 00:33:18,166 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:33:18,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:33:18,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:33:18,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:33:18,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:18,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:33:18,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:33:18,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:33:18,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:33:18,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:33:18,168 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_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2a8d3919c0496882213752e07135061fdbafdf6 [2021-10-11 00:33:18,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:33:18,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:33:18,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:33:18,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:33:18,550 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:33:18,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c [2021-10-11 00:33:18,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/data/fc90446db/e39000c1d8c748fa8c079e4516618555/FLAG8a4257ac0 [2021-10-11 00:33:19,153 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:33:19,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c [2021-10-11 00:33:19,160 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/data/fc90446db/e39000c1d8c748fa8c079e4516618555/FLAG8a4257ac0 [2021-10-11 00:33:19,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/data/fc90446db/e39000c1d8c748fa8c079e4516618555 [2021-10-11 00:33:19,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:33:19,540 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-11 00:33:19,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:19,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:33:19,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:33:19,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:19" (1/1) ... [2021-10-11 00:33:19,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22778cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19, skipping insertion in model container [2021-10-11 00:33:19,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:19" (1/1) ... [2021-10-11 00:33:19,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:33:19,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:33:19,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:19,813 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:33:19,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:19,847 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:33:19,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19 WrapperNode [2021-10-11 00:33:19,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:19,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:33:19,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:33:19,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:33:19,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19" (1/1) ... [2021-10-11 00:33:19,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19" (1/1) ... [2021-10-11 00:33:19,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19" (1/1) ... [2021-10-11 00:33:19,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19" (1/1) ... [2021-10-11 00:33:19,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19" (1/1) ... [2021-10-11 00:33:19,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19" (1/1) ... [2021-10-11 00:33:19,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19" (1/1) ... [2021-10-11 00:33:19,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:33:19,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:33:19,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:33:19,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:33:19,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:19,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-11 00:33:19,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:33:19,988 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-11 00:33:19,988 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-11 00:33:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-11 00:33:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-11 00:33:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-11 00:33:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 00:33:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:33:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:33:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:33:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-11 00:33:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:33:20,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:33:20,216 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-11 00:33:20,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:20 BoogieIcfgContainer [2021-10-11 00:33:20,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:33:20,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:33:20,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:33:20,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:33:20,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:33:19" (1/3) ... [2021-10-11 00:33:20,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a910c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:20, skipping insertion in model container [2021-10-11 00:33:20,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:19" (2/3) ... [2021-10-11 00:33:20,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a910c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:20, skipping insertion in model container [2021-10-11 00:33:20,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:20" (3/3) ... [2021-10-11 00:33:20,229 INFO L111 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-1.c [2021-10-11 00:33:20,247 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:33:20,251 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2021-10-11 00:33:20,265 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-11 00:33:20,290 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:33:20,291 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 00:33:20,291 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:33:20,291 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:33:20,291 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:33:20,291 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:33:20,292 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:33:20,292 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:33:20,337 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2021-10-11 00:33:20,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:33:20,347 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:20,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:20,349 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2021-10-11 00:33:20,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:20,362 INFO L82 PathProgramCache]: Analyzing trace with hash -522028180, now seen corresponding path program 1 times [2021-10-11 00:33:20,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:20,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825425987] [2021-10-11 00:33:20,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:20,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:20,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:20,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825425987] [2021-10-11 00:33:20,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:20,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:20,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132360230] [2021-10-11 00:33:20,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:33:20,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:20,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:33:20,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:20,697 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2021-10-11 00:33:20,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:20,831 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-10-11 00:33:20,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:33:20,837 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:33:20,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:20,853 INFO L225 Difference]: With dead ends: 28 [2021-10-11 00:33:20,854 INFO L226 Difference]: Without dead ends: 25 [2021-10-11 00:33:20,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:20,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-11 00:33:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-10-11 00:33:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-10-11 00:33:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-10-11 00:33:20,897 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 7 [2021-10-11 00:33:20,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:20,898 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-10-11 00:33:20,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:33:20,898 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-10-11 00:33:20,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:33:20,899 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:20,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:20,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:33:20,900 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2021-10-11 00:33:20,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:20,901 INFO L82 PathProgramCache]: Analyzing trace with hash -522028179, now seen corresponding path program 1 times [2021-10-11 00:33:20,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:20,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046914100] [2021-10-11 00:33:20,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:21,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:21,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:21,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046914100] [2021-10-11 00:33:21,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:21,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:21,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369023057] [2021-10-11 00:33:21,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:33:21,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:21,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:33:21,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:21,055 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 4 states. [2021-10-11 00:33:21,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:21,117 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-10-11 00:33:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:33:21,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:33:21,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:21,119 INFO L225 Difference]: With dead ends: 20 [2021-10-11 00:33:21,120 INFO L226 Difference]: Without dead ends: 20 [2021-10-11 00:33:21,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:21,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-11 00:33:21,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-11 00:33:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-10-11 00:33:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-10-11 00:33:21,126 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2021-10-11 00:33:21,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:21,127 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-10-11 00:33:21,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:33:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-10-11 00:33:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:33:21,128 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:21,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:21,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:33:21,129 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2021-10-11 00:33:21,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:21,130 INFO L82 PathProgramCache]: Analyzing trace with hash -141661244, now seen corresponding path program 1 times [2021-10-11 00:33:21,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:21,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792231156] [2021-10-11 00:33:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:21,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:21,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792231156] [2021-10-11 00:33:21,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:21,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:33:21,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142773388] [2021-10-11 00:33:21,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:33:21,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:21,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:33:21,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:21,216 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2021-10-11 00:33:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:21,270 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-10-11 00:33:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:33:21,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-10-11 00:33:21,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:21,276 INFO L225 Difference]: With dead ends: 19 [2021-10-11 00:33:21,276 INFO L226 Difference]: Without dead ends: 19 [2021-10-11 00:33:21,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:33:21,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-11 00:33:21,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-11 00:33:21,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 00:33:21,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-10-11 00:33:21,294 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12 [2021-10-11 00:33:21,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:21,295 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-10-11 00:33:21,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:33:21,295 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-10-11 00:33:21,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 00:33:21,296 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:21,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:21,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:33:21,297 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2021-10-11 00:33:21,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:21,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1302500167, now seen corresponding path program 1 times [2021-10-11 00:33:21,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:21,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907139142] [2021-10-11 00:33:21,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:21,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:21,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:21,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907139142] [2021-10-11 00:33:21,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:21,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:33:21,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574509449] [2021-10-11 00:33:21,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:33:21,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:21,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:33:21,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:33:21,406 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 5 states. [2021-10-11 00:33:21,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:21,470 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-11 00:33:21,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:33:21,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-10-11 00:33:21,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:21,474 INFO L225 Difference]: With dead ends: 18 [2021-10-11 00:33:21,474 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:33:21,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:33:21,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:33:21,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:33:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:33:21,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:33:21,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-11 00:33:21,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:21,476 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:33:21,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:33:21,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:33:21,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:33:21,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:33:21,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:33:21 BoogieIcfgContainer [2021-10-11 00:33:21,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:33:21,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:33:21,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:33:21,486 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:33:21,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:20" (3/4) ... [2021-10-11 00:33:21,491 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:33:21,498 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-11 00:33:21,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-11 00:33:21,507 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:33:21,509 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 00:33:21,509 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:33:21,509 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:33:21,572 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51bc670b-dee4-4658-8814-ec2596c16c9a/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:33:21,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:33:21,574 INFO L168 Benchmark]: Toolchain (without parser) took 2033.35 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 69.6 MB in the beginning and 76.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:21,575 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 109.1 MB. Free memory was 86.5 MB in the beginning and 86.4 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:21,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.74 ms. Allocated memory is still 109.1 MB. Free memory was 69.4 MB in the beginning and 84.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:21,576 INFO L168 Benchmark]: Boogie Preprocessor took 51.81 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 82.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:21,577 INFO L168 Benchmark]: RCFGBuilder took 315.08 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 69.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:21,578 INFO L168 Benchmark]: TraceAbstraction took 1264.32 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 68.9 MB in the beginning and 79.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:21,578 INFO L168 Benchmark]: Witness Printer took 86.60 ms. Allocated memory is still 132.1 MB. Free memory was 79.7 MB in the beginning and 76.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:21,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 109.1 MB. Free memory was 86.5 MB in the beginning and 86.4 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.74 ms. Allocated memory is still 109.1 MB. Free memory was 69.4 MB in the beginning and 84.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.81 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 82.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 315.08 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 69.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1264.32 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 68.9 MB in the beginning and 79.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * Witness Printer took 86.60 ms. Allocated memory is still 132.1 MB. Free memory was 79.7 MB in the beginning and 76.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 44 SDslu, 30 SDs, 0 SdLazy, 109 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...