./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW --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 1985bb251db70a1c798d345be7e1671f9dcc6a359b969ca99d23e0003d9a3770 --- 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-4e7fbc6 [2022-11-23 15:38:50,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:38:50,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:38:50,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:38:50,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:38:50,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:38:50,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:38:50,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:38:50,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:38:50,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:38:50,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:38:50,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:38:50,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:38:50,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:38:50,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:38:50,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:38:50,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:38:50,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:38:50,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:38:50,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:38:50,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:38:50,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:38:50,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:38:50,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:38:50,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:38:50,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:38:50,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:38:50,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:38:50,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:38:50,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:38:50,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:38:50,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:38:50,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:38:50,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:38:50,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:38:50,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:38:50,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:38:50,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:38:50,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:38:50,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:38:50,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:38:50,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-23 15:38:50,571 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:38:50,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:38:50,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:38:50,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:38:50,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:38:50,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:38:50,573 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:38:50,574 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:38:50,574 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:38:50,574 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:38:50,574 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:38:50,575 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:38:50,575 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:38:50,575 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:38:50,576 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:38:50,576 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:38:50,576 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:38:50,576 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:38:50,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 15:38:50,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 15:38:50,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:38:50,578 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:38:50,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:38:50,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:38:50,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:38:50,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:38:50,579 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 15:38:50,580 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 15:38:50,580 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 15:38:50,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:38:50,580 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:38:50,581 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:38:50,581 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:38:50,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:38:50,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:38:50,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:38:50,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:38:50,583 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:38:50,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:38:50,583 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:38:50,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:38:50,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:38:50,584 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_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1985bb251db70a1c798d345be7e1671f9dcc6a359b969ca99d23e0003d9a3770 [2022-11-23 15:38:50,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:38:50,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:38:50,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:38:50,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:38:50,895 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:38:50,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2022-11-23 15:38:54,011 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:38:54,260 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:38:54,261 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2022-11-23 15:38:54,273 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/data/08cf4a6f8/1129961c163d40838f25ac8b09fadee3/FLAGb55a21b2d [2022-11-23 15:38:54,287 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/data/08cf4a6f8/1129961c163d40838f25ac8b09fadee3 [2022-11-23 15:38:54,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:38:54,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:38:54,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:38:54,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:38:54,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:38:54,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2564571a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54, skipping insertion in model container [2022-11-23 15:38:54,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:38:54,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:38:54,643 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_2ba542c4-3d90-4ab8-a539-bc958af04b19/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2022-11-23 15:38:54,653 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_2ba542c4-3d90-4ab8-a539-bc958af04b19/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2022-11-23 15:38:54,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:38:54,682 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:38:54,744 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_2ba542c4-3d90-4ab8-a539-bc958af04b19/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2022-11-23 15:38:54,746 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_2ba542c4-3d90-4ab8-a539-bc958af04b19/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2022-11-23 15:38:54,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:38:54,803 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:38:54,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54 WrapperNode [2022-11-23 15:38:54,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:38:54,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:38:54,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:38:54,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:38:54,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,880 INFO L138 Inliner]: procedures = 169, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-11-23 15:38:54,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:38:54,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:38:54,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:38:54,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:38:54,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,931 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:38:54,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:38:54,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:38:54,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:38:54,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2022-11-23 15:38:54,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:38:54,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:54,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:38:54,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:38:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2022-11-23 15:38:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2022-11-23 15:38:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:38:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2022-11-23 15:38:55,020 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2022-11-23 15:38:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:38:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 15:38:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:38:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:38:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:38:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:38:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:38:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:38:55,023 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:38:55,241 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:38:55,243 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:38:55,571 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:38:55,578 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:38:55,578 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:38:55,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:55 BoogieIcfgContainer [2022-11-23 15:38:55,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:38:55,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:38:55,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:38:55,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:38:55,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:38:54" (1/3) ... [2022-11-23 15:38:55,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310b5298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:55, skipping insertion in model container [2022-11-23 15:38:55,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (2/3) ... [2022-11-23 15:38:55,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310b5298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:55, skipping insertion in model container [2022-11-23 15:38:55,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:55" (3/3) ... [2022-11-23 15:38:55,598 INFO L112 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2022-11-23 15:38:55,618 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:38:55,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-23 15:38:55,619 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:38:55,724 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 15:38:55,760 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:38:55,776 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 114 transitions, 244 flow [2022-11-23 15:38:55,779 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 114 transitions, 244 flow [2022-11-23 15:38:55,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 114 transitions, 244 flow [2022-11-23 15:38:55,855 INFO L130 PetriNetUnfolder]: 5/112 cut-off events. [2022-11-23 15:38:55,856 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 15:38:55,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 112 events. 5/112 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 132 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 76. Up to 3 conditions per place. [2022-11-23 15:38:55,863 INFO L119 LiptonReduction]: Number of co-enabled transitions 1306 [2022-11-23 15:39:01,615 INFO L134 LiptonReduction]: Checked pairs total: 3855 [2022-11-23 15:39:01,617 INFO L136 LiptonReduction]: Total number of compositions: 113 [2022-11-23 15:39:01,627 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 37 transitions, 90 flow [2022-11-23 15:39:01,693 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 322 states, 300 states have (on average 2.8633333333333333) internal successors, (859), 321 states have internal predecessors, (859), 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) [2022-11-23 15:39:01,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:39:01,729 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;@3ea7a092, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:39:01,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-23 15:39:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 322 states, 300 states have (on average 2.8633333333333333) internal successors, (859), 321 states have internal predecessors, (859), 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) [2022-11-23 15:39:01,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 15:39:01,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:01,740 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 15:39:01,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:01,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:01,748 INFO L85 PathProgramCache]: Analyzing trace with hash 429, now seen corresponding path program 1 times [2022-11-23 15:39:01,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:01,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101355900] [2022-11-23 15:39:01,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:01,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:01,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:01,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:01,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101355900] [2022-11-23 15:39:01,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101355900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:01,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:01,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 15:39:01,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943636792] [2022-11-23 15:39:01,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:01,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:39:01,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:01,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:39:01,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:39:01,935 INFO L87 Difference]: Start difference. First operand has 322 states, 300 states have (on average 2.8633333333333333) internal successors, (859), 321 states have internal predecessors, (859), 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) [2022-11-23 15:39:02,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:02,034 INFO L93 Difference]: Finished difference Result 320 states and 825 transitions. [2022-11-23 15:39:02,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:39:02,036 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 [2022-11-23 15:39:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:02,059 INFO L225 Difference]: With dead ends: 320 [2022-11-23 15:39:02,059 INFO L226 Difference]: Without dead ends: 320 [2022-11-23 15:39:02,060 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 [2022-11-23 15:39:02,065 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:02,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:39:02,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-11-23 15:39:02,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2022-11-23 15:39:02,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 300 states have (on average 2.75) internal successors, (825), 319 states have internal predecessors, (825), 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) [2022-11-23 15:39:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 825 transitions. [2022-11-23 15:39:02,148 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 825 transitions. Word has length 1 [2022-11-23 15:39:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:02,148 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 825 transitions. [2022-11-23 15:39:02,149 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) [2022-11-23 15:39:02,149 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 825 transitions. [2022-11-23 15:39:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 15:39:02,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:02,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 15:39:02,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:39:02,150 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:02,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:02,150 INFO L85 PathProgramCache]: Analyzing trace with hash 420420, now seen corresponding path program 1 times [2022-11-23 15:39:02,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:02,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854418154] [2022-11-23 15:39:02,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:02,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:02,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:02,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854418154] [2022-11-23 15:39:02,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854418154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:02,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:02,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:39:02,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584162147] [2022-11-23 15:39:02,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:02,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:39:02,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:02,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:39:02,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:39:02,463 INFO L87 Difference]: Start difference. First operand 320 states and 825 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-23 15:39:02,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:02,524 INFO L93 Difference]: Finished difference Result 304 states and 793 transitions. [2022-11-23 15:39:02,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:39:02,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-23 15:39:02,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:02,527 INFO L225 Difference]: With dead ends: 304 [2022-11-23 15:39:02,527 INFO L226 Difference]: Without dead ends: 304 [2022-11-23 15:39:02,528 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 [2022-11-23 15:39:02,529 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:02,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:39:02,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-11-23 15:39:02,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2022-11-23 15:39:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 288 states have (on average 2.7534722222222223) internal successors, (793), 303 states have internal predecessors, (793), 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) [2022-11-23 15:39:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 793 transitions. [2022-11-23 15:39:02,560 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 793 transitions. Word has length 3 [2022-11-23 15:39:02,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:02,560 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 793 transitions. [2022-11-23 15:39:02,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-23 15:39:02,560 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 793 transitions. [2022-11-23 15:39:02,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 15:39:02,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:02,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 15:39:02,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:39:02,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:02,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:02,562 INFO L85 PathProgramCache]: Analyzing trace with hash 420422, now seen corresponding path program 1 times [2022-11-23 15:39:02,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:02,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331568162] [2022-11-23 15:39:02,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:02,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:02,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:02,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:02,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331568162] [2022-11-23 15:39:02,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331568162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:02,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:02,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:39:02,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948792757] [2022-11-23 15:39:02,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:02,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:39:02,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:02,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:39:02,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:39:02,674 INFO L87 Difference]: Start difference. First operand 304 states and 793 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-23 15:39:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:02,726 INFO L93 Difference]: Finished difference Result 288 states and 761 transitions. [2022-11-23 15:39:02,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:39:02,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-23 15:39:02,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:02,730 INFO L225 Difference]: With dead ends: 288 [2022-11-23 15:39:02,730 INFO L226 Difference]: Without dead ends: 288 [2022-11-23 15:39:02,731 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 [2022-11-23 15:39:02,734 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:02,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:39:02,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-11-23 15:39:02,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2022-11-23 15:39:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 276 states have (on average 2.7572463768115942) internal successors, (761), 287 states have internal predecessors, (761), 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) [2022-11-23 15:39:02,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 761 transitions. [2022-11-23 15:39:02,752 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 761 transitions. Word has length 3 [2022-11-23 15:39:02,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:02,754 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 761 transitions. [2022-11-23 15:39:02,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-23 15:39:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 761 transitions. [2022-11-23 15:39:02,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:39:02,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:02,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:39:02,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:39:02,755 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:02,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:02,756 INFO L85 PathProgramCache]: Analyzing trace with hash 404033725, now seen corresponding path program 1 times [2022-11-23 15:39:02,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:02,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996353965] [2022-11-23 15:39:02,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:02,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:02,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996353965] [2022-11-23 15:39:02,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996353965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:02,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:02,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:39:02,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623799263] [2022-11-23 15:39:02,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:02,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:39:02,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:02,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:39:02,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:39:02,847 INFO L87 Difference]: Start difference. First operand 288 states and 761 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-23 15:39:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:02,895 INFO L93 Difference]: Finished difference Result 225 states and 572 transitions. [2022-11-23 15:39:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:39:02,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2022-11-23 15:39:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:02,897 INFO L225 Difference]: With dead ends: 225 [2022-11-23 15:39:02,897 INFO L226 Difference]: Without dead ends: 225 [2022-11-23 15:39:02,898 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 [2022-11-23 15:39:02,898 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:02,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:39:02,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-23 15:39:02,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2022-11-23 15:39:02,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 217 states have (on average 2.6359447004608296) internal successors, (572), 224 states have internal predecessors, (572), 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) [2022-11-23 15:39:02,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 572 transitions. [2022-11-23 15:39:02,907 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 572 transitions. Word has length 5 [2022-11-23 15:39:02,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:02,908 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 572 transitions. [2022-11-23 15:39:02,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-23 15:39:02,908 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 572 transitions. [2022-11-23 15:39:02,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:39:02,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:02,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:39:02,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:39:02,909 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:02,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:02,910 INFO L85 PathProgramCache]: Analyzing trace with hash 404033727, now seen corresponding path program 1 times [2022-11-23 15:39:02,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:02,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637028580] [2022-11-23 15:39:02,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:02,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:02,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:02,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:02,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637028580] [2022-11-23 15:39:02,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637028580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:02,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:02,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:39:02,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370789346] [2022-11-23 15:39:02,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:02,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:39:02,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:02,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:39:02,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:39:02,999 INFO L87 Difference]: Start difference. First operand 225 states and 572 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-11-23 15:39:03,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:03,036 INFO L93 Difference]: Finished difference Result 162 states and 383 transitions. [2022-11-23 15:39:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:39:03,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 [2022-11-23 15:39:03,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:03,038 INFO L225 Difference]: With dead ends: 162 [2022-11-23 15:39:03,038 INFO L226 Difference]: Without dead ends: 162 [2022-11-23 15:39:03,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:39:03,039 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:03,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:39:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-23 15:39:03,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-23 15:39:03,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 158 states have (on average 2.4240506329113924) internal successors, (383), 161 states have internal predecessors, (383), 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) [2022-11-23 15:39:03,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 383 transitions. [2022-11-23 15:39:03,045 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 383 transitions. Word has length 5 [2022-11-23 15:39:03,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:03,045 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 383 transitions. [2022-11-23 15:39:03,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-11-23 15:39:03,045 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 383 transitions. [2022-11-23 15:39:03,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:39:03,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:03,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:39:03,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:39:03,046 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:03,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:03,047 INFO L85 PathProgramCache]: Analyzing trace with hash 403985911, now seen corresponding path program 1 times [2022-11-23 15:39:03,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:03,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855005931] [2022-11-23 15:39:03,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:03,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:03,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:03,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:03,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855005931] [2022-11-23 15:39:03,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855005931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:03,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:03,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:39:03,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342609264] [2022-11-23 15:39:03,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:03,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:39:03,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:03,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:39:03,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:39:03,075 INFO L87 Difference]: Start difference. First operand 162 states and 383 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2022-11-23 15:39:03,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:03,123 INFO L93 Difference]: Finished difference Result 162 states and 367 transitions. [2022-11-23 15:39:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:39:03,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 [2022-11-23 15:39:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:03,124 INFO L225 Difference]: With dead ends: 162 [2022-11-23 15:39:03,124 INFO L226 Difference]: Without dead ends: 162 [2022-11-23 15:39:03,125 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 [2022-11-23 15:39:03,125 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:03,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 6 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:39:03,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-23 15:39:03,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-23 15:39:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 158 states have (on average 2.3227848101265822) internal successors, (367), 161 states have internal predecessors, (367), 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) [2022-11-23 15:39:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 367 transitions. [2022-11-23 15:39:03,131 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 367 transitions. Word has length 5 [2022-11-23 15:39:03,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:03,131 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 367 transitions. [2022-11-23 15:39:03,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2022-11-23 15:39:03,132 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 367 transitions. [2022-11-23 15:39:03,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:39:03,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:03,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:39:03,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:39:03,133 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:03,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:03,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1729400252, now seen corresponding path program 1 times [2022-11-23 15:39:03,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:03,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652967187] [2022-11-23 15:39:03,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:03,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:03,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:03,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:03,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652967187] [2022-11-23 15:39:03,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652967187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:03,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:03,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:39:03,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444111801] [2022-11-23 15:39:03,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:03,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:39:03,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:03,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:39:03,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:39:03,165 INFO L87 Difference]: Start difference. First operand 162 states and 367 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 15:39:03,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:03,229 INFO L93 Difference]: Finished difference Result 184 states and 384 transitions. [2022-11-23 15:39:03,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:39:03,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-23 15:39:03,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:03,231 INFO L225 Difference]: With dead ends: 184 [2022-11-23 15:39:03,231 INFO L226 Difference]: Without dead ends: 178 [2022-11-23 15:39:03,231 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 [2022-11-23 15:39:03,232 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:03,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:39:03,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-23 15:39:03,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 160. [2022-11-23 15:39:03,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 2.2451612903225806) internal successors, (348), 159 states have internal predecessors, (348), 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) [2022-11-23 15:39:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 348 transitions. [2022-11-23 15:39:03,238 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 348 transitions. Word has length 7 [2022-11-23 15:39:03,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:03,238 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 348 transitions. [2022-11-23 15:39:03,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 15:39:03,239 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 348 transitions. [2022-11-23 15:39:03,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:39:03,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:03,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:39:03,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:39:03,240 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:03,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:03,240 INFO L85 PathProgramCache]: Analyzing trace with hash 643342009, now seen corresponding path program 1 times [2022-11-23 15:39:03,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:03,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081183884] [2022-11-23 15:39:03,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:03,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:03,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:03,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081183884] [2022-11-23 15:39:03,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081183884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:03,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:03,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:39:03,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470257698] [2022-11-23 15:39:03,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:03,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:39:03,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:03,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:39:03,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:39:03,269 INFO L87 Difference]: Start difference. First operand 160 states and 348 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) [2022-11-23 15:39:03,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:03,340 INFO L93 Difference]: Finished difference Result 162 states and 333 transitions. [2022-11-23 15:39:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:39:03,341 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 [2022-11-23 15:39:03,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:03,342 INFO L225 Difference]: With dead ends: 162 [2022-11-23 15:39:03,342 INFO L226 Difference]: Without dead ends: 162 [2022-11-23 15:39:03,342 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 [2022-11-23 15:39:03,343 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:03,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:39:03,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-23 15:39:03,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 148. [2022-11-23 15:39:03,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 144 states have (on average 2.173611111111111) internal successors, (313), 147 states have internal predecessors, (313), 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) [2022-11-23 15:39:03,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 313 transitions. [2022-11-23 15:39:03,348 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 313 transitions. Word has length 8 [2022-11-23 15:39:03,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:03,348 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 313 transitions. [2022-11-23 15:39:03,348 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) [2022-11-23 15:39:03,349 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 313 transitions. [2022-11-23 15:39:03,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:39:03,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:03,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:39:03,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:39:03,350 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:03,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:03,350 INFO L85 PathProgramCache]: Analyzing trace with hash -26649419, now seen corresponding path program 1 times [2022-11-23 15:39:03,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:03,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867642143] [2022-11-23 15:39:03,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:03,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:03,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:03,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867642143] [2022-11-23 15:39:03,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867642143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:03,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:03,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:39:03,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991272566] [2022-11-23 15:39:03,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:03,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:39:03,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:03,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:39:03,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:39:03,474 INFO L87 Difference]: Start difference. First operand 148 states and 313 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:39:03,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:03,613 INFO L93 Difference]: Finished difference Result 146 states and 277 transitions. [2022-11-23 15:39:03,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:39:03,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:39:03,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:03,614 INFO L225 Difference]: With dead ends: 146 [2022-11-23 15:39:03,614 INFO L226 Difference]: Without dead ends: 142 [2022-11-23 15:39:03,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:39:03,615 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 78 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:03,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 7 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:39:03,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-23 15:39:03,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 128. [2022-11-23 15:39:03,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 124 states have (on average 2.0080645161290325) internal successors, (249), 127 states have internal predecessors, (249), 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) [2022-11-23 15:39:03,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 249 transitions. [2022-11-23 15:39:03,620 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 249 transitions. Word has length 12 [2022-11-23 15:39:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:03,620 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 249 transitions. [2022-11-23 15:39:03,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:39:03,621 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 249 transitions. [2022-11-23 15:39:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:39:03,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:03,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:39:03,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:39:03,622 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:03,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:03,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1744799115, now seen corresponding path program 2 times [2022-11-23 15:39:03,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:03,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915960678] [2022-11-23 15:39:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:03,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:03,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:03,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:03,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915960678] [2022-11-23 15:39:03,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915960678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:03,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:03,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:39:03,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315606125] [2022-11-23 15:39:03,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:03,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:39:03,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:03,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:39:03,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:39:03,663 INFO L87 Difference]: Start difference. First operand 128 states and 249 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:39:03,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:03,706 INFO L93 Difference]: Finished difference Result 78 states and 146 transitions. [2022-11-23 15:39:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:39:03,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:39:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:03,707 INFO L225 Difference]: With dead ends: 78 [2022-11-23 15:39:03,707 INFO L226 Difference]: Without dead ends: 78 [2022-11-23 15:39:03,708 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 [2022-11-23 15:39:03,708 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:03,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:39:03,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-23 15:39:03,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-23 15:39:03,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.896103896103896) internal successors, (146), 77 states have internal predecessors, (146), 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) [2022-11-23 15:39:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 146 transitions. [2022-11-23 15:39:03,711 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 146 transitions. Word has length 12 [2022-11-23 15:39:03,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:03,712 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 146 transitions. [2022-11-23 15:39:03,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:39:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 146 transitions. [2022-11-23 15:39:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:39:03,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:39:03,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:39:03,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:39:03,713 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-23 15:39:03,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:39:03,714 INFO L85 PathProgramCache]: Analyzing trace with hash 916090584, now seen corresponding path program 1 times [2022-11-23 15:39:03,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:39:03,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664037101] [2022-11-23 15:39:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:39:03,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:39:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:39:03,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:39:03,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:39:03,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664037101] [2022-11-23 15:39:03,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664037101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:39:03,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:39:03,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:39:03,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931905207] [2022-11-23 15:39:03,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:39:03,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:39:03,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:39:03,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:39:03,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:39:03,972 INFO L87 Difference]: Start difference. First operand 78 states and 146 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2022-11-23 15:39:03,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:39:03,998 INFO L93 Difference]: Finished difference Result 77 states and 145 transitions. [2022-11-23 15:39:03,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:39:03,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2022-11-23 15:39:03,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:39:03,999 INFO L225 Difference]: With dead ends: 77 [2022-11-23 15:39:03,999 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:39:04,000 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 [2022-11-23 15:39:04,000 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:39:04,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:39:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:39:04,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:39:04,001 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) [2022-11-23 15:39:04,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:39:04,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-23 15:39:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:39:04,002 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:39:04,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2022-11-23 15:39:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:39:04,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:39:04,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK (14 of 15 remaining) [2022-11-23 15:39:04,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2022-11-23 15:39:04,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining) [2022-11-23 15:39:04,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2022-11-23 15:39:04,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2022-11-23 15:39:04,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2022-11-23 15:39:04,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2022-11-23 15:39:04,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2022-11-23 15:39:04,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2022-11-23 15:39:04,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2022-11-23 15:39:04,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (4 of 15 remaining) [2022-11-23 15:39:04,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining) [2022-11-23 15:39:04,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2022-11-23 15:39:04,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 15 remaining) [2022-11-23 15:39:04,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2022-11-23 15:39:04,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:39:04,011 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:39:04,017 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 15:39:04,017 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:39:04,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:39:04 BasicIcfg [2022-11-23 15:39:04,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:39:04,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:39:04,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:39:04,022 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:39:04,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:55" (3/4) ... [2022-11-23 15:39:04,024 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:39:04,030 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2022-11-23 15:39:04,031 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2022-11-23 15:39:04,036 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-23 15:39:04,036 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 15:39:04,037 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 15:39:04,037 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:39:04,076 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:39:04,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:39:04,077 INFO L158 Benchmark]: Toolchain (without parser) took 9785.42ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 118.4MB in the beginning and 92.4MB in the end (delta: 26.0MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2022-11-23 15:39:04,077 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 159.4MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:39:04,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.59ms. Allocated memory is still 159.4MB. Free memory was 117.9MB in the beginning and 98.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:39:04,077 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.99ms. Allocated memory is still 159.4MB. Free memory was 98.0MB in the beginning and 96.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:39:04,078 INFO L158 Benchmark]: Boogie Preprocessor took 53.71ms. Allocated memory is still 159.4MB. Free memory was 96.4MB in the beginning and 94.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:39:04,078 INFO L158 Benchmark]: RCFGBuilder took 641.24ms. Allocated memory is still 159.4MB. Free memory was 94.8MB in the beginning and 79.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:39:04,079 INFO L158 Benchmark]: TraceAbstraction took 8437.74ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 78.6MB in the beginning and 95.6MB in the end (delta: -17.0MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-11-23 15:39:04,080 INFO L158 Benchmark]: Witness Printer took 54.85ms. Allocated memory is still 203.4MB. Free memory was 95.6MB in the beginning and 92.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:39:04,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 159.4MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.59ms. Allocated memory is still 159.4MB. Free memory was 117.9MB in the beginning and 98.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.99ms. Allocated memory is still 159.4MB. Free memory was 98.0MB in the beginning and 96.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.71ms. Allocated memory is still 159.4MB. Free memory was 96.4MB in the beginning and 94.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 641.24ms. Allocated memory is still 159.4MB. Free memory was 94.8MB in the beginning and 79.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8437.74ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 78.6MB in the beginning and 95.6MB in the end (delta: -17.0MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Witness Printer took 54.85ms. Allocated memory is still 203.4MB. Free memory was 95.6MB in the beginning and 92.4MB in the end (delta: 3.1MB). 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: 5.8s, 116 PlacesBefore, 41 PlacesAfterwards, 114 TransitionsBefore, 37 TransitionsAfterwards, 1306 CoEnabledTransitionPairs, 7 FixpointIterations, 63 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 113 TotalNumberOfCompositions, 3855 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2261, independent: 2107, independent conditional: 0, independent unconditional: 2107, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 909, independent: 877, independent conditional: 0, independent unconditional: 877, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 909, independent: 851, independent conditional: 0, independent unconditional: 851, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 120, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2261, independent: 1230, independent conditional: 0, independent unconditional: 1230, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 909, unknown conditional: 0, unknown unconditional: 909] , Statistics on independence cache: Total cache size (in pairs): 171, Positive cache size: 153, Positive conditional cache size: 0, Positive unconditional cache size: 153, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: 702]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 710]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: -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: -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: -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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 715]: 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 5 procedures, 143 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 251 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 388 IncrementalHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 33 mSDtfsCounter, 388 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=322occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 46 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 15:39:04,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba542c4-3d90-4ab8-a539-bc958af04b19/bin/utaipan-Q6hlc19bkW/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