./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test_malloc-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_malloc-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt --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 b7ed2d130fc75cbcf8189a2d583a04b39e59d2f9 ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:05:00,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:05:00,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:05:00,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:05:00,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:05:00,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:05:00,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:05:00,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:05:00,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:05:00,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:05:00,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:05:00,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:05:00,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:05:00,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:05:00,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:05:00,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:05:00,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:05:00,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:05:00,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:05:00,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:05:00,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:05:00,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:05:00,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:05:00,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:05:00,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:05:00,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:05:00,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:05:00,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:05:00,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:05:00,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:05:00,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:05:00,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:05:00,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:05:00,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:05:00,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:05:00,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:05:00,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:05:00,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:05:00,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:05:00,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:05:00,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:05:00,213 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:05:00,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:05:00,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:05:00,263 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:05:00,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:05:00,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:05:00,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:05:00,272 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:05:00,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:05:00,273 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:05:00,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:05:00,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:05:00,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:05:00,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:05:00,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:05:00,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:05:00,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:05:00,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:05:00,279 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:05:00,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:05:00,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:05:00,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:05:00,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:05:00,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:05:00,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:05:00,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:05:00,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:05:00,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:05:00,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:05:00,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:05:00,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:05:00,281 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_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7ed2d130fc75cbcf8189a2d583a04b39e59d2f9 [2021-10-13 01:05:00,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:05:00,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:05:00,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:05:00,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:05:00,566 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:05:00,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-regression/test_malloc-2.i [2021-10-13 01:05:00,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/data/5d61d3dc8/f03115c8f92a4957b3d53f2aedc3a76d/FLAGe4f02721a [2021-10-13 01:05:01,175 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:05:01,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/sv-benchmarks/c/ldv-regression/test_malloc-2.i [2021-10-13 01:05:01,206 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/data/5d61d3dc8/f03115c8f92a4957b3d53f2aedc3a76d/FLAGe4f02721a [2021-10-13 01:05:01,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/data/5d61d3dc8/f03115c8f92a4957b3d53f2aedc3a76d [2021-10-13 01:05:01,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:05:01,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:05:01,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:05:01,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:05:01,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:05:01,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:05:01" (1/1) ... [2021-10-13 01:05:01,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5013eca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:01, skipping insertion in model container [2021-10-13 01:05:01,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:05:01" (1/1) ... [2021-10-13 01:05:01,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:05:01,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:05:01,774 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_aa873dd8-68ef-478a-a152-fc22e6d041cc/sv-benchmarks/c/ldv-regression/test_malloc-2.i[813,826] [2021-10-13 01:05:01,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:05:01,945 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:05:01,957 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_aa873dd8-68ef-478a-a152-fc22e6d041cc/sv-benchmarks/c/ldv-regression/test_malloc-2.i[813,826] [2021-10-13 01:05:01,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:05:02,016 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:05:02,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02 WrapperNode [2021-10-13 01:05:02,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:05:02,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:05:02,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:05:02,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:05:02,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:05:02,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:05:02,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:05:02,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:05:02,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:05:02,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:05:02,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:05:02,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:05:02,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (1/1) ... [2021-10-13 01:05:02,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:05:02,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:05:02,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:05:02,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:05:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:05:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 01:05:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:05:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:05:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:05:02,364 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:05:02,364 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 01:05:02,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:02 BoogieIcfgContainer [2021-10-13 01:05:02,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:05:02,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:05:02,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:05:02,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:05:02,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:05:01" (1/3) ... [2021-10-13 01:05:02,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d76608e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:05:02, skipping insertion in model container [2021-10-13 01:05:02,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:02" (2/3) ... [2021-10-13 01:05:02,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d76608e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:05:02, skipping insertion in model container [2021-10-13 01:05:02,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:02" (3/3) ... [2021-10-13 01:05:02,375 INFO L111 eAbstractionObserver]: Analyzing ICFG test_malloc-2.i [2021-10-13 01:05:02,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:05:02,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:05:02,429 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:05:02,435 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 01:05:02,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:05:02,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:02,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 01:05:02,455 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:05:02,456 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 01:05:02,456 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:05:02,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:05:02,462 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-10-13 01:05:02,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:05:02,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982702536] [2021-10-13 01:05:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:05:02,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:05:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:05:02,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:05:02,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:05:02,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982702536] [2021-10-13 01:05:02,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982702536] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:05:02,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:05:02,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:05:02,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065771838] [2021-10-13 01:05:02,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:05:02,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:05:02,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:05:02,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:05:02,801 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-13 01:05:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:05:02,831 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-10-13 01:05:02,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:05:02,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-13 01:05:02,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:05:02,840 INFO L225 Difference]: With dead ends: 18 [2021-10-13 01:05:02,840 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:05:02,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:05:02,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:05:02,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:05:02,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:05:02,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-13 01:05:02,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:05:02,867 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:05:02,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-13 01:05:02,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:05:02,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:05:02,871 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:05:02,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:05:02,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:05:02,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:05:02,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:05:02,891 INFO L853 garLoopResultBuilder]: At program point L386-1(lines 386 388) the Hoare annotation is: (not (= ULTIMATE.start_main_~p1~0.base ULTIMATE.start_main_~p2~0.base)) [2021-10-13 01:05:02,891 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:05:02,891 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:05:02,892 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:05:02,892 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:05:02,892 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-10-13 01:05:02,892 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-10-13 01:05:02,892 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2021-10-13 01:05:02,893 INFO L853 garLoopResultBuilder]: At program point L389(lines 382 390) the Hoare annotation is: (not (= ULTIMATE.start_main_~p1~0.base ULTIMATE.start_main_~p2~0.base)) [2021-10-13 01:05:02,893 INFO L857 garLoopResultBuilder]: For program point L386(lines 386 388) no Hoare annotation was computed. [2021-10-13 01:05:02,898 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:05:02,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:05:02 BoogieIcfgContainer [2021-10-13 01:05:02,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:05:02,912 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:05:02,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:05:02,913 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:05:02,913 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:02" (3/4) ... [2021-10-13 01:05:02,917 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:05:02,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-13 01:05:02,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 01:05:02,927 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:05:02,927 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:05:02,956 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:05:02,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:05:02,959 INFO L168 Benchmark]: Toolchain (without parser) took 1459.69 ms. Allocated memory is still 138.4 MB. Free memory was 101.7 MB in the beginning and 69.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:02,960 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 138.4 MB. Free memory was 109.4 MB in the beginning and 109.4 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:05:02,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.38 ms. Allocated memory is still 138.4 MB. Free memory was 101.5 MB in the beginning and 106.6 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:02,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 138.4 MB. Free memory was 106.6 MB in the beginning and 105.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:02,962 INFO L168 Benchmark]: Boogie Preprocessor took 21.10 ms. Allocated memory is still 138.4 MB. Free memory was 105.4 MB in the beginning and 104.5 MB in the end (delta: 911.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:05:02,963 INFO L168 Benchmark]: RCFGBuilder took 285.86 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 94.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:02,963 INFO L168 Benchmark]: TraceAbstraction took 543.88 ms. Allocated memory is still 138.4 MB. Free memory was 94.0 MB in the beginning and 71.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:02,964 INFO L168 Benchmark]: Witness Printer took 44.36 ms. Allocated memory is still 138.4 MB. Free memory was 71.8 MB in the beginning and 69.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:02,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 138.4 MB. Free memory was 109.4 MB in the beginning and 109.4 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 517.38 ms. Allocated memory is still 138.4 MB. Free memory was 101.5 MB in the beginning and 106.6 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 138.4 MB. Free memory was 106.6 MB in the beginning and 105.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.10 ms. Allocated memory is still 138.4 MB. Free memory was 105.4 MB in the beginning and 104.5 MB in the end (delta: 911.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 285.86 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 94.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 543.88 ms. Allocated memory is still 138.4 MB. Free memory was 94.0 MB in the beginning and 71.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 44.36 ms. Allocated memory is still 138.4 MB. Free memory was 71.8 MB in the beginning and 69.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: 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: 15]: 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 470.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.0ms, AutomataDifference: 56.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 18.6ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 9.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 8.7ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 8.8ms SsaConstructionTime, 64.1ms SatisfiabilityAnalysisTime, 154.2ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 - InvariantResult [Line: 386]: Loop Invariant Derived loop invariant: !(p1 == p2) - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: !(p1 == p2) RESULT: Ultimate proved your program to be correct! [2021-10-13 01:05:03,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa873dd8-68ef-478a-a152-fc22e6d041cc/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...