./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:33:06,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:33:06,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:33:06,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:33:06,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:33:06,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:33:06,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:33:06,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:33:06,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:33:06,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:33:06,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:33:06,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:33:06,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:33:06,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:33:06,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:33:06,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:33:06,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:33:06,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:33:06,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:33:06,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:33:06,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:33:06,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:33:06,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:33:06,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:33:06,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:33:06,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:33:06,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:33:06,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:33:06,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:33:06,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:33:06,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:33:06,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:33:06,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:33:06,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:33:06,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:33:06,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:33:06,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:33:06,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:33:06,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:33:06,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:33:06,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:33:06,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 00:33:06,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:33:06,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:33:06,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:33:06,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:33:06,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:33:06,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:33:06,878 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:33:06,878 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:33:06,878 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:33:06,878 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:33:06,879 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:33:06,880 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:33:06,880 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:33:06,880 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:33:06,881 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:33:06,881 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:33:06,881 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:33:06,881 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:33:06,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:33:06,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:33:06,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:33:06,884 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:33:06,884 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:33:06,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:33:06,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:33:06,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:33:06,885 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:33:06,885 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:33:06,886 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:33:06,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:33:06,886 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:33:06,887 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:33:06,887 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:33:06,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:33:06,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:33:06,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:06,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:33:06,888 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:33:06,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:33:06,889 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:33:06,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:33:06,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:33:06,889 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_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 [2022-11-26 00:33:07,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:33:07,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:33:07,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:33:07,237 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:33:07,237 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:33:07,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2022-11-26 00:33:10,347 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:33:10,650 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:33:10,654 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2022-11-26 00:33:10,670 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/data/916b347d2/3be1cf42f7344c9fa48ecdf765a4aba5/FLAG2462037ab [2022-11-26 00:33:10,688 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/data/916b347d2/3be1cf42f7344c9fa48ecdf765a4aba5 [2022-11-26 00:33:10,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:33:10,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:33:10,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:10,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:33:10,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:33:10,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:10" (1/1) ... [2022-11-26 00:33:10,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e585b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:10, skipping insertion in model container [2022-11-26 00:33:10,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:10" (1/1) ... [2022-11-26 00:33:10,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:33:10,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:33:10,946 WARN L237 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_89c7e442-ea3e-422d-b394-2d5f589fbe39/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2022-11-26 00:33:11,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:11,116 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:33:11,133 WARN L237 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_89c7e442-ea3e-422d-b394-2d5f589fbe39/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2022-11-26 00:33:11,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:11,238 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:33:11,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11 WrapperNode [2022-11-26 00:33:11,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:11,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:11,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:33:11,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:33:11,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,291 INFO L138 Inliner]: procedures = 162, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2022-11-26 00:33:11,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:11,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:33:11,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:33:11,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:33:11,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,315 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:33:11,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:33:11,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:33:11,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:33:11,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (1/1) ... [2022-11-26 00:33:11,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:11,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:11,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:33:11,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:33:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:33:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:33:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:33:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:33:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:33:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:33:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:33:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:33:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:33:11,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:33:11,408 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:33:11,557 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:33:11,562 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:33:11,783 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:33:11,790 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:33:11,790 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:33:11,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:11 BoogieIcfgContainer [2022-11-26 00:33:11,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:33:11,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:33:11,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:33:11,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:33:11,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:33:10" (1/3) ... [2022-11-26 00:33:11,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df14e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:11, skipping insertion in model container [2022-11-26 00:33:11,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:11" (2/3) ... [2022-11-26 00:33:11,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df14e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:11, skipping insertion in model container [2022-11-26 00:33:11,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:11" (3/3) ... [2022-11-26 00:33:11,802 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2022-11-26 00:33:11,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:33:11,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 00:33:11,822 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:33:11,890 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:33:11,963 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:33:11,985 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 85 transitions, 175 flow [2022-11-26 00:33:11,997 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 85 transitions, 175 flow [2022-11-26 00:33:11,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 175 flow [2022-11-26 00:33:12,080 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-11-26 00:33:12,083 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:33:12,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 1/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-11-26 00:33:12,092 INFO L119 LiptonReduction]: Number of co-enabled transitions 754 [2022-11-26 00:33:16,498 INFO L134 LiptonReduction]: Checked pairs total: 2752 [2022-11-26 00:33:16,498 INFO L136 LiptonReduction]: Total number of compositions: 87 [2022-11-26 00:33:16,514 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 22 transitions, 49 flow [2022-11-26 00:33:16,541 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 76 states, 72 states have (on average 1.9305555555555556) internal successors, (139), 75 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:16,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:33:16,580 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e058bc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:33:16,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-26 00:33:16,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 72 states have (on average 1.9305555555555556) internal successors, (139), 75 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:16,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:33:16,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:16,592 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:33:16,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-26 00:33:16,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:16,603 INFO L85 PathProgramCache]: Analyzing trace with hash 304, now seen corresponding path program 1 times [2022-11-26 00:33:16,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:16,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10317889] [2022-11-26 00:33:16,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:16,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:16,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:16,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:16,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10317889] [2022-11-26 00:33:16,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10317889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:16,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:16,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:33:16,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845560380] [2022-11-26 00:33:16,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:16,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:33:16,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:16,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:33:16,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:33:16,775 INFO L87 Difference]: Start difference. First operand has 76 states, 72 states have (on average 1.9305555555555556) internal successors, (139), 75 states have internal predecessors, (139), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:16,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:16,820 INFO L93 Difference]: Finished difference Result 74 states and 129 transitions. [2022-11-26 00:33:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:33:16,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-26 00:33:16,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:16,831 INFO L225 Difference]: With dead ends: 74 [2022-11-26 00:33:16,831 INFO L226 Difference]: Without dead ends: 74 [2022-11-26 00:33:16,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:33:16,836 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:16,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:16,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-26 00:33:16,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-26 00:33:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 1.7916666666666667) internal successors, (129), 73 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:16,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 129 transitions. [2022-11-26 00:33:16,877 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 129 transitions. Word has length 1 [2022-11-26 00:33:16,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:16,878 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 129 transitions. [2022-11-26 00:33:16,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 129 transitions. [2022-11-26 00:33:16,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:33:16,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:16,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:16,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:33:16,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-26 00:33:16,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1294291041, now seen corresponding path program 1 times [2022-11-26 00:33:16,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:16,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617216687] [2022-11-26 00:33:16,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:16,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:17,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:17,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617216687] [2022-11-26 00:33:17,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617216687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:17,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:17,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:33:17,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576309118] [2022-11-26 00:33:17,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:17,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:33:17,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:17,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:33:17,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:17,166 INFO L87 Difference]: Start difference. First operand 74 states and 129 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:17,196 INFO L93 Difference]: Finished difference Result 66 states and 114 transitions. [2022-11-26 00:33:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:33:17,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-26 00:33:17,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:17,197 INFO L225 Difference]: With dead ends: 66 [2022-11-26 00:33:17,198 INFO L226 Difference]: Without dead ends: 58 [2022-11-26 00:33:17,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:17,199 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:17,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:17,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-26 00:33:17,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-26 00:33:17,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.736842105263158) internal successors, (99), 57 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 99 transitions. [2022-11-26 00:33:17,207 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 99 transitions. Word has length 8 [2022-11-26 00:33:17,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:17,208 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 99 transitions. [2022-11-26 00:33:17,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 99 transitions. [2022-11-26 00:33:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:33:17,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:17,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:17,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:33:17,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-26 00:33:17,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:17,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1294292831, now seen corresponding path program 1 times [2022-11-26 00:33:17,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:17,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164296019] [2022-11-26 00:33:17,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:17,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:17,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:17,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:17,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164296019] [2022-11-26 00:33:17,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164296019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:17,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:17,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:33:17,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902018595] [2022-11-26 00:33:17,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:17,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:33:17,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:17,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:33:17,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:17,308 INFO L87 Difference]: Start difference. First operand 58 states and 99 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:17,340 INFO L93 Difference]: Finished difference Result 70 states and 115 transitions. [2022-11-26 00:33:17,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:33:17,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-26 00:33:17,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:17,343 INFO L225 Difference]: With dead ends: 70 [2022-11-26 00:33:17,344 INFO L226 Difference]: Without dead ends: 40 [2022-11-26 00:33:17,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:17,345 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:17,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:17,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-26 00:33:17,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-26 00:33:17,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 39 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 63 transitions. [2022-11-26 00:33:17,356 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 63 transitions. Word has length 8 [2022-11-26 00:33:17,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:17,358 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 63 transitions. [2022-11-26 00:33:17,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,358 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2022-11-26 00:33:17,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:33:17,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:17,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:17,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:33:17,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-26 00:33:17,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:17,361 INFO L85 PathProgramCache]: Analyzing trace with hash -353542318, now seen corresponding path program 1 times [2022-11-26 00:33:17,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:17,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429922348] [2022-11-26 00:33:17,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:17,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:17,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:17,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429922348] [2022-11-26 00:33:17,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429922348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:17,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:17,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:33:17,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551069465] [2022-11-26 00:33:17,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:17,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:33:17,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:17,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:33:17,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:33:17,541 INFO L87 Difference]: Start difference. First operand 40 states and 63 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:17,587 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2022-11-26 00:33:17,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:33:17,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:33:17,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:17,588 INFO L225 Difference]: With dead ends: 29 [2022-11-26 00:33:17,588 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:33:17,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:33:17,593 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:17,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:17,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:33:17,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-26 00:33:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2022-11-26 00:33:17,606 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2022-11-26 00:33:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:17,607 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2022-11-26 00:33:17,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2022-11-26 00:33:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:33:17,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:17,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:17,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:33:17,608 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-26 00:33:17,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:17,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1956996754, now seen corresponding path program 2 times [2022-11-26 00:33:17,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:17,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574575221] [2022-11-26 00:33:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:17,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:17,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:17,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:17,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574575221] [2022-11-26 00:33:17,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574575221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:17,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:17,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:33:17,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055182569] [2022-11-26 00:33:17,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:17,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:33:17,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:33:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:17,750 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:17,811 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2022-11-26 00:33:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:33:17,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:33:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:17,812 INFO L225 Difference]: With dead ends: 26 [2022-11-26 00:33:17,812 INFO L226 Difference]: Without dead ends: 24 [2022-11-26 00:33:17,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:17,814 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:17,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:17,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-26 00:33:17,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2022-11-26 00:33:17,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-26 00:33:17,818 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 11 [2022-11-26 00:33:17,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:17,819 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-26 00:33:17,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:17,820 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-26 00:33:17,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:33:17,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:17,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:17,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:33:17,822 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-26 00:33:17,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:17,822 INFO L85 PathProgramCache]: Analyzing trace with hash -521645197, now seen corresponding path program 1 times [2022-11-26 00:33:17,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:17,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533192039] [2022-11-26 00:33:17,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:17,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:18,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:18,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533192039] [2022-11-26 00:33:18,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533192039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:18,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:18,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:33:18,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909007844] [2022-11-26 00:33:18,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:18,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:33:18,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:18,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:33:18,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:33:18,120 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:18,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:18,145 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2022-11-26 00:33:18,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:33:18,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-26 00:33:18,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:18,148 INFO L225 Difference]: With dead ends: 10 [2022-11-26 00:33:18,148 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:33:18,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:33:18,149 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:18,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:18,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:33:18,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:33:18,151 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) [2022-11-26 00:33:18,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:33:18,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-26 00:33:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:18,152 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:33:18,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:18,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:33:18,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:33:18,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2022-11-26 00:33:18,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-26 00:33:18,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2022-11-26 00:33:18,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-26 00:33:18,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-26 00:33:18,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:33:18,162 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-11-26 00:33:18,168 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:33:18,168 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:33:18,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:33:18 BasicIcfg [2022-11-26 00:33:18,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:33:18,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:33:18,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:33:18,173 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:33:18,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:11" (3/4) ... [2022-11-26 00:33:18,177 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:33:18,182 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-26 00:33:18,186 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-26 00:33:18,186 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-26 00:33:18,186 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:33:18,187 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:33:18,219 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:33:18,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:33:18,220 INFO L158 Benchmark]: Toolchain (without parser) took 7526.91ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 134.7MB in the beginning and 136.4MB in the end (delta: -1.7MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2022-11-26 00:33:18,220 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:33:18,220 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.90ms. Allocated memory is still 180.4MB. Free memory was 134.7MB in the beginning and 115.4MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:33:18,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.20ms. Allocated memory is still 180.4MB. Free memory was 115.4MB in the beginning and 113.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:33:18,221 INFO L158 Benchmark]: Boogie Preprocessor took 26.11ms. Allocated memory is still 180.4MB. Free memory was 113.3MB in the beginning and 112.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:33:18,221 INFO L158 Benchmark]: RCFGBuilder took 473.45ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 146.7MB in the end (delta: -34.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-11-26 00:33:18,221 INFO L158 Benchmark]: TraceAbstraction took 6376.95ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 145.6MB in the beginning and 138.5MB in the end (delta: 7.0MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2022-11-26 00:33:18,222 INFO L158 Benchmark]: Witness Printer took 46.02ms. Allocated memory is still 218.1MB. Free memory was 138.5MB in the beginning and 136.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:33:18,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 541.90ms. Allocated memory is still 180.4MB. Free memory was 134.7MB in the beginning and 115.4MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.20ms. Allocated memory is still 180.4MB. Free memory was 115.4MB in the beginning and 113.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.11ms. Allocated memory is still 180.4MB. Free memory was 113.3MB in the beginning and 112.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 473.45ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 146.7MB in the end (delta: -34.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6376.95ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 145.6MB in the beginning and 138.5MB in the end (delta: 7.0MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. * Witness Printer took 46.02ms. Allocated memory is still 218.1MB. Free memory was 138.5MB in the beginning and 136.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 88 PlacesBefore, 25 PlacesAfterwards, 85 TransitionsBefore, 22 TransitionsAfterwards, 754 CoEnabledTransitionPairs, 9 FixpointIterations, 48 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 87 TotalNumberOfCompositions, 2752 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1194, independent: 972, independent conditional: 0, independent unconditional: 972, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 542, independent: 499, independent conditional: 0, independent unconditional: 499, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 542, independent: 442, independent conditional: 0, independent unconditional: 442, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 100, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 271, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1194, independent: 473, independent conditional: 0, independent unconditional: 473, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 542, unknown conditional: 0, unknown unconditional: 542] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 52, Positive conditional cache size: 0, Positive unconditional cache size: 52, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 695]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 18 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 257 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-26 00:33:18,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89c7e442-ea3e-422d-b394-2d5f589fbe39/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE