./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs --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 4df6794b9b3a948996212d63f7c149439c613ff1 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:14:54,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:14:54,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:14:54,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:14:54,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:14:54,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:14:54,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:14:54,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:14:54,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:14:54,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:14:54,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:14:54,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:14:54,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:14:54,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:14:54,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:14:54,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:14:54,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:14:54,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:14:54,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:14:54,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:14:54,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:14:54,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:14:54,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:14:54,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:14:54,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:14:54,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:14:54,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:14:54,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:14:54,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:14:54,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:14:54,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:14:54,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:14:54,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:14:54,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:14:54,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:14:54,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:14:54,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:14:54,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:14:54,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:14:54,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:14:54,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:14:54,580 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-16 03:14:54,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:14:54,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:14:54,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:14:54,628 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:14:54,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:14:54,629 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:14:54,629 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:14:54,630 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:14:54,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:14:54,630 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:14:54,631 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:14:54,631 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:14:54,632 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:14:54,632 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:14:54,632 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:14:54,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 03:14:54,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 03:14:54,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:14:54,634 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:14:54,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 03:14:54,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:14:54,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:14:54,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:14:54,635 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-16 03:14:54,635 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-16 03:14:54,636 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-16 03:14:54,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:14:54,638 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:14:54,638 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:14:54,638 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:14:54,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:14:54,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:14:54,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:14:54,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:14:54,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:14:54,642 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:14:54,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:14:54,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:14:54,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:14:54,643 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4df6794b9b3a948996212d63f7c149439c613ff1 [2021-10-16 03:14:54,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:14:54,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:14:54,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:14:54,927 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:14:54,927 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:14:54,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2021-10-16 03:14:55,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/data/dd90fad47/2ae4be9d98144ea49badf218ae98927a/FLAG4458184de [2021-10-16 03:14:55,548 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:14:55,558 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2021-10-16 03:14:55,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/data/dd90fad47/2ae4be9d98144ea49badf218ae98927a/FLAG4458184de [2021-10-16 03:14:55,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/data/dd90fad47/2ae4be9d98144ea49badf218ae98927a [2021-10-16 03:14:55,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:14:55,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:14:55,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:14:55,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:14:55,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:14:55,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:14:55" (1/1) ... [2021-10-16 03:14:55,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59672978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:55, skipping insertion in model container [2021-10-16 03:14:55,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:14:55" (1/1) ... [2021-10-16 03:14:55,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:14:55,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:14:56,113 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2021-10-16 03:14:56,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:14:56,262 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:14:56,280 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2021-10-16 03:14:56,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:14:56,407 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:14:56,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56 WrapperNode [2021-10-16 03:14:56,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:14:56,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:14:56,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:14:56,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:14:56,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:14:56,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:14:56,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:14:56,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:14:56,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:14:56,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:14:56,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:14:56,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:14:56,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (1/1) ... [2021-10-16 03:14:56,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:14:56,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:14:56,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:14:56,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:14:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:14:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:14:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:14:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:14:57,100 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,130 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,137 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,143 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,145 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,147 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,152 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,155 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,156 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,160 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,163 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,164 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,168 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,170 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,171 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,175 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,178 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,184 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,186 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,191 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,201 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:57,213 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 03:14:58,444 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##674: assume !false; [2021-10-16 03:14:58,444 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##673: assume false; [2021-10-16 03:14:58,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##618: assume !false; [2021-10-16 03:14:58,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##617: assume false; [2021-10-16 03:14:58,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##296: assume !false; [2021-10-16 03:14:58,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##295: assume false; [2021-10-16 03:14:58,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !false; [2021-10-16 03:14:58,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##255: assume false; [2021-10-16 03:14:58,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##217: assume !false; [2021-10-16 03:14:58,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##216: assume false; [2021-10-16 03:14:58,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##247: assume !false; [2021-10-16 03:14:58,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume false; [2021-10-16 03:14:58,447 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##724: assume !false; [2021-10-16 03:14:58,447 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##723: assume false; [2021-10-16 03:14:58,447 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2021-10-16 03:14:58,447 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2021-10-16 03:14:58,447 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##326: assume !false; [2021-10-16 03:14:58,448 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##325: assume false; [2021-10-16 03:14:58,448 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##335: assume !false; [2021-10-16 03:14:58,448 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##334: assume false; [2021-10-16 03:14:58,448 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##405: assume !false; [2021-10-16 03:14:58,448 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume false; [2021-10-16 03:14:58,449 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##412: assume false; [2021-10-16 03:14:58,449 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##413: assume !false; [2021-10-16 03:14:58,449 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##452: assume false; [2021-10-16 03:14:58,449 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##453: assume !false; [2021-10-16 03:14:58,449 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##483: assume !false; [2021-10-16 03:14:58,450 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##482: assume false; [2021-10-16 03:14:58,450 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##543: assume !false; [2021-10-16 03:14:58,450 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##542: assume false; [2021-10-16 03:14:58,450 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##98: assume !false; [2021-10-16 03:14:58,451 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume false; [2021-10-16 03:14:58,451 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##80: assume !false; [2021-10-16 03:14:58,451 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume !false; [2021-10-16 03:14:58,451 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume false; [2021-10-16 03:14:58,451 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2021-10-16 03:14:58,451 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2021-10-16 03:14:58,452 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume false; [2021-10-16 03:14:58,452 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##142: assume !false; [2021-10-16 03:14:58,452 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume false; [2021-10-16 03:14:58,452 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-10-16 03:14:58,452 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-10-16 03:14:58,453 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##573: assume !false; [2021-10-16 03:14:58,453 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##572: assume false; [2021-10-16 03:14:59,600 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:14:59,600 INFO L299 CfgBuilder]: Removed 267 assume(true) statements. [2021-10-16 03:14:59,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:14:59 BoogieIcfgContainer [2021-10-16 03:14:59,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:14:59,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:14:59,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:14:59,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:14:59,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:14:55" (1/3) ... [2021-10-16 03:14:59,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9888c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:14:59, skipping insertion in model container [2021-10-16 03:14:59,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:14:56" (2/3) ... [2021-10-16 03:14:59,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9888c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:14:59, skipping insertion in model container [2021-10-16 03:14:59,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:14:59" (3/3) ... [2021-10-16 03:14:59,615 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf_simpl1.cil.c [2021-10-16 03:14:59,620 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:14:59,621 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2021-10-16 03:14:59,672 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:14:59,679 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:14:59,679 INFO L340 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2021-10-16 03:14:59,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 365 states, 312 states have (on average 1.7467948717948718) internal successors, (545), 364 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:14:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 03:14:59,710 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:14:59,710 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 03:14:59,711 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:14:59,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:14:59,716 INFO L82 PathProgramCache]: Analyzing trace with hash 67190960, now seen corresponding path program 1 times [2021-10-16 03:14:59,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:14:59,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924687230] [2021-10-16 03:14:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:14:59,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:14:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:14:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:14:59,944 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:14:59,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924687230] [2021-10-16 03:14:59,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924687230] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:14:59,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:14:59,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:14:59,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612985443] [2021-10-16 03:14:59,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:14:59,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:14:59,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:14:59,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:14:59,992 INFO L87 Difference]: Start difference. First operand has 365 states, 312 states have (on average 1.7467948717948718) internal successors, (545), 364 states have internal predecessors, (545), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:00,118 INFO L93 Difference]: Finished difference Result 390 states and 526 transitions. [2021-10-16 03:15:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:00,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-10-16 03:15:00,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:00,142 INFO L225 Difference]: With dead ends: 390 [2021-10-16 03:15:00,142 INFO L226 Difference]: Without dead ends: 388 [2021-10-16 03:15:00,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:00,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-16 03:15:00,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 371. [2021-10-16 03:15:00,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 319 states have (on average 1.5768025078369905) internal successors, (503), 370 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 503 transitions. [2021-10-16 03:15:00,234 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 503 transitions. Word has length 4 [2021-10-16 03:15:00,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:00,235 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 503 transitions. [2021-10-16 03:15:00,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,235 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 503 transitions. [2021-10-16 03:15:00,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 03:15:00,236 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:00,236 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 03:15:00,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:15:00,237 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:00,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:00,238 INFO L82 PathProgramCache]: Analyzing trace with hash -88952287, now seen corresponding path program 1 times [2021-10-16 03:15:00,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:00,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429964920] [2021-10-16 03:15:00,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:00,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:00,290 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:00,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429964920] [2021-10-16 03:15:00,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429964920] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:00,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:00,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:15:00,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45411575] [2021-10-16 03:15:00,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:00,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:00,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:00,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:00,294 INFO L87 Difference]: Start difference. First operand 371 states and 503 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:00,379 INFO L93 Difference]: Finished difference Result 614 states and 827 transitions. [2021-10-16 03:15:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:00,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-10-16 03:15:00,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:00,385 INFO L225 Difference]: With dead ends: 614 [2021-10-16 03:15:00,385 INFO L226 Difference]: Without dead ends: 614 [2021-10-16 03:15:00,386 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:00,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-10-16 03:15:00,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 546. [2021-10-16 03:15:00,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 500 states have (on average 1.576) internal successors, (788), 545 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 788 transitions. [2021-10-16 03:15:00,417 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 788 transitions. Word has length 6 [2021-10-16 03:15:00,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:00,418 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 788 transitions. [2021-10-16 03:15:00,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,418 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 788 transitions. [2021-10-16 03:15:00,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 03:15:00,422 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:00,422 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 03:15:00,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:15:00,423 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:00,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:00,424 INFO L82 PathProgramCache]: Analyzing trace with hash 146071095, now seen corresponding path program 1 times [2021-10-16 03:15:00,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:00,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187693007] [2021-10-16 03:15:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:00,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:00,479 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:00,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187693007] [2021-10-16 03:15:00,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187693007] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:00,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:00,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:00,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785733152] [2021-10-16 03:15:00,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:00,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:00,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:00,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:00,482 INFO L87 Difference]: Start difference. First operand 546 states and 788 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:00,682 INFO L93 Difference]: Finished difference Result 697 states and 996 transitions. [2021-10-16 03:15:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:00,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-10-16 03:15:00,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:00,686 INFO L225 Difference]: With dead ends: 697 [2021-10-16 03:15:00,686 INFO L226 Difference]: Without dead ends: 697 [2021-10-16 03:15:00,686 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:00,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2021-10-16 03:15:00,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 686. [2021-10-16 03:15:00,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 651 states have (on average 1.5207373271889402) internal successors, (990), 685 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 990 transitions. [2021-10-16 03:15:00,708 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 990 transitions. Word has length 6 [2021-10-16 03:15:00,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:00,708 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 990 transitions. [2021-10-16 03:15:00,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,709 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 990 transitions. [2021-10-16 03:15:00,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 03:15:00,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:00,709 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:00,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 03:15:00,710 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:00,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:00,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1545341148, now seen corresponding path program 1 times [2021-10-16 03:15:00,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:00,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113145469] [2021-10-16 03:15:00,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:00,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:00,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:00,767 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:00,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113145469] [2021-10-16 03:15:00,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113145469] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:00,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:00,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 03:15:00,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137776701] [2021-10-16 03:15:00,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:00,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:00,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:00,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:00,771 INFO L87 Difference]: Start difference. First operand 686 states and 990 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-16 03:15:00,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:00,779 INFO L93 Difference]: Finished difference Result 685 states and 989 transitions. [2021-10-16 03:15:00,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:00,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2021-10-16 03:15:00,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:00,783 INFO L225 Difference]: With dead ends: 685 [2021-10-16 03:15:00,784 INFO L226 Difference]: Without dead ends: 683 [2021-10-16 03:15:00,784 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2021-10-16 03:15:00,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 678. [2021-10-16 03:15:00,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 644 states have (on average 1.5093167701863355) internal successors, (972), 677 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 972 transitions. [2021-10-16 03:15:00,803 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 972 transitions. Word has length 7 [2021-10-16 03:15:00,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:00,803 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 972 transitions. [2021-10-16 03:15:00,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-16 03:15:00,803 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 972 transitions. [2021-10-16 03:15:00,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:15:00,804 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:00,804 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:00,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 03:15:00,805 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:00,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:00,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1730910960, now seen corresponding path program 1 times [2021-10-16 03:15:00,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:00,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137376835] [2021-10-16 03:15:00,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:00,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:00,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:00,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137376835] [2021-10-16 03:15:00,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137376835] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:00,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:00,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:15:00,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29020553] [2021-10-16 03:15:00,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:00,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:00,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:00,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:00,839 INFO L87 Difference]: Start difference. First operand 678 states and 972 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:00,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:00,975 INFO L93 Difference]: Finished difference Result 681 states and 974 transitions. [2021-10-16 03:15:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:00,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-16 03:15:00,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:00,980 INFO L225 Difference]: With dead ends: 681 [2021-10-16 03:15:00,980 INFO L226 Difference]: Without dead ends: 678 [2021-10-16 03:15:00,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:00,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2021-10-16 03:15:00,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 678. [2021-10-16 03:15:00,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 644 states have (on average 1.5077639751552796) internal successors, (971), 677 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 971 transitions. [2021-10-16 03:15:01,001 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 971 transitions. Word has length 10 [2021-10-16 03:15:01,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:01,001 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 971 transitions. [2021-10-16 03:15:01,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,001 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 971 transitions. [2021-10-16 03:15:01,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:15:01,004 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:01,004 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:01,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 03:15:01,005 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:01,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:01,005 INFO L82 PathProgramCache]: Analyzing trace with hash -154167574, now seen corresponding path program 1 times [2021-10-16 03:15:01,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:01,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201382536] [2021-10-16 03:15:01,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:01,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:01,088 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:01,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201382536] [2021-10-16 03:15:01,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201382536] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:01,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:01,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:01,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173646273] [2021-10-16 03:15:01,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:01,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:01,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:01,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:01,090 INFO L87 Difference]: Start difference. First operand 678 states and 971 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:01,129 INFO L93 Difference]: Finished difference Result 853 states and 1216 transitions. [2021-10-16 03:15:01,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:01,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-10-16 03:15:01,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:01,134 INFO L225 Difference]: With dead ends: 853 [2021-10-16 03:15:01,135 INFO L226 Difference]: Without dead ends: 853 [2021-10-16 03:15:01,135 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:01,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2021-10-16 03:15:01,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 724. [2021-10-16 03:15:01,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 696 states have (on average 1.5244252873563218) internal successors, (1061), 723 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1061 transitions. [2021-10-16 03:15:01,182 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1061 transitions. Word has length 10 [2021-10-16 03:15:01,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:01,183 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 1061 transitions. [2021-10-16 03:15:01,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,183 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1061 transitions. [2021-10-16 03:15:01,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 03:15:01,188 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:01,188 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:01,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 03:15:01,189 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:01,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:01,190 INFO L82 PathProgramCache]: Analyzing trace with hash 394022861, now seen corresponding path program 1 times [2021-10-16 03:15:01,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:01,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453360724] [2021-10-16 03:15:01,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:01,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:01,276 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:01,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453360724] [2021-10-16 03:15:01,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453360724] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:01,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:01,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:01,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421406057] [2021-10-16 03:15:01,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:01,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:01,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:01,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:01,283 INFO L87 Difference]: Start difference. First operand 724 states and 1061 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:01,402 INFO L93 Difference]: Finished difference Result 720 states and 1057 transitions. [2021-10-16 03:15:01,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:01,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-10-16 03:15:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:01,407 INFO L225 Difference]: With dead ends: 720 [2021-10-16 03:15:01,407 INFO L226 Difference]: Without dead ends: 720 [2021-10-16 03:15:01,408 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:01,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2021-10-16 03:15:01,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2021-10-16 03:15:01,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 694 states have (on average 1.5230547550432276) internal successors, (1057), 719 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1057 transitions. [2021-10-16 03:15:01,432 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1057 transitions. Word has length 15 [2021-10-16 03:15:01,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:01,432 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1057 transitions. [2021-10-16 03:15:01,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1057 transitions. [2021-10-16 03:15:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 03:15:01,435 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:01,436 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:01,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 03:15:01,436 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:01,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1722274858, now seen corresponding path program 1 times [2021-10-16 03:15:01,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:01,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680359518] [2021-10-16 03:15:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:01,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:01,495 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:01,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680359518] [2021-10-16 03:15:01,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680359518] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:01,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:01,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:01,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870396420] [2021-10-16 03:15:01,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:01,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:01,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:01,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:01,497 INFO L87 Difference]: Start difference. First operand 720 states and 1057 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:01,623 INFO L93 Difference]: Finished difference Result 732 states and 1070 transitions. [2021-10-16 03:15:01,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:01,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-10-16 03:15:01,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:01,627 INFO L225 Difference]: With dead ends: 732 [2021-10-16 03:15:01,628 INFO L226 Difference]: Without dead ends: 732 [2021-10-16 03:15:01,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:01,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-10-16 03:15:01,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2021-10-16 03:15:01,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 706 states have (on average 1.5155807365439093) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2021-10-16 03:15:01,646 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 15 [2021-10-16 03:15:01,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:01,647 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2021-10-16 03:15:01,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2021-10-16 03:15:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 03:15:01,648 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:01,648 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:01,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 03:15:01,648 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:01,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:01,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1833333272, now seen corresponding path program 1 times [2021-10-16 03:15:01,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:01,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668529098] [2021-10-16 03:15:01,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:01,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:01,738 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:01,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668529098] [2021-10-16 03:15:01,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668529098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:01,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:01,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:01,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107627010] [2021-10-16 03:15:01,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:01,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:01,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:01,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:01,744 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:01,906 INFO L93 Difference]: Finished difference Result 732 states and 1068 transitions. [2021-10-16 03:15:01,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:01,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-10-16 03:15:01,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:01,911 INFO L225 Difference]: With dead ends: 732 [2021-10-16 03:15:01,911 INFO L226 Difference]: Without dead ends: 732 [2021-10-16 03:15:01,912 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:01,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-10-16 03:15:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2021-10-16 03:15:01,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 706 states have (on average 1.5127478753541077) internal successors, (1068), 731 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1068 transitions. [2021-10-16 03:15:01,930 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1068 transitions. Word has length 16 [2021-10-16 03:15:01,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:01,931 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1068 transitions. [2021-10-16 03:15:01,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1068 transitions. [2021-10-16 03:15:01,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-16 03:15:01,932 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:01,932 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:01,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 03:15:01,933 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:01,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:01,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1531718427, now seen corresponding path program 1 times [2021-10-16 03:15:01,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:01,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580491105] [2021-10-16 03:15:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:01,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:01,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:01,995 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:01,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580491105] [2021-10-16 03:15:01,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580491105] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:01,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:01,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:01,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977658002] [2021-10-16 03:15:01,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:01,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:01,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:01,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:01,997 INFO L87 Difference]: Start difference. First operand 732 states and 1068 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:02,155 INFO L93 Difference]: Finished difference Result 732 states and 1066 transitions. [2021-10-16 03:15:02,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:02,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-10-16 03:15:02,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:02,160 INFO L225 Difference]: With dead ends: 732 [2021-10-16 03:15:02,160 INFO L226 Difference]: Without dead ends: 732 [2021-10-16 03:15:02,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:02,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-10-16 03:15:02,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2021-10-16 03:15:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 706 states have (on average 1.5099150141643058) internal successors, (1066), 731 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1066 transitions. [2021-10-16 03:15:02,202 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1066 transitions. Word has length 17 [2021-10-16 03:15:02,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:02,202 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1066 transitions. [2021-10-16 03:15:02,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,203 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1066 transitions. [2021-10-16 03:15:02,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 03:15:02,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:02,204 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:02,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-16 03:15:02,204 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:02,205 INFO L82 PathProgramCache]: Analyzing trace with hash -602588481, now seen corresponding path program 1 times [2021-10-16 03:15:02,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:02,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587148178] [2021-10-16 03:15:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:02,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:02,257 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:02,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587148178] [2021-10-16 03:15:02,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587148178] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:02,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:02,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:02,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253150191] [2021-10-16 03:15:02,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:02,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:02,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:02,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:02,260 INFO L87 Difference]: Start difference. First operand 732 states and 1066 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-10-16 03:15:02,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:02,282 INFO L93 Difference]: Finished difference Result 743 states and 1076 transitions. [2021-10-16 03:15:02,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:02,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 [2021-10-16 03:15:02,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:02,287 INFO L225 Difference]: With dead ends: 743 [2021-10-16 03:15:02,287 INFO L226 Difference]: Without dead ends: 730 [2021-10-16 03:15:02,288 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:02,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2021-10-16 03:15:02,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2021-10-16 03:15:02,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 704 states have (on average 1.5099431818181819) internal successors, (1063), 729 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1063 transitions. [2021-10-16 03:15:02,309 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1063 transitions. Word has length 18 [2021-10-16 03:15:02,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:02,309 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 1063 transitions. [2021-10-16 03:15:02,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-10-16 03:15:02,310 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1063 transitions. [2021-10-16 03:15:02,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 03:15:02,311 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:02,311 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:02,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-16 03:15:02,311 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:02,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:02,312 INFO L82 PathProgramCache]: Analyzing trace with hash -383913352, now seen corresponding path program 1 times [2021-10-16 03:15:02,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:02,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372006205] [2021-10-16 03:15:02,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:02,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:02,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:02,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372006205] [2021-10-16 03:15:02,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372006205] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:02,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:02,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:02,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306160439] [2021-10-16 03:15:02,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:02,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:02,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:02,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:02,345 INFO L87 Difference]: Start difference. First operand 730 states and 1063 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:02,368 INFO L93 Difference]: Finished difference Result 595 states and 822 transitions. [2021-10-16 03:15:02,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:02,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-16 03:15:02,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:02,373 INFO L225 Difference]: With dead ends: 595 [2021-10-16 03:15:02,373 INFO L226 Difference]: Without dead ends: 595 [2021-10-16 03:15:02,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2021-10-16 03:15:02,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 582. [2021-10-16 03:15:02,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 556 states have (on average 1.4568345323741008) internal successors, (810), 581 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 810 transitions. [2021-10-16 03:15:02,390 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 810 transitions. Word has length 19 [2021-10-16 03:15:02,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:02,391 INFO L470 AbstractCegarLoop]: Abstraction has 582 states and 810 transitions. [2021-10-16 03:15:02,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,391 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 810 transitions. [2021-10-16 03:15:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-16 03:15:02,392 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:02,392 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:02,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-16 03:15:02,393 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:02,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:02,394 INFO L82 PathProgramCache]: Analyzing trace with hash -950565082, now seen corresponding path program 1 times [2021-10-16 03:15:02,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:02,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635513353] [2021-10-16 03:15:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:02,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:02,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:02,431 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:02,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635513353] [2021-10-16 03:15:02,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635513353] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:02,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:02,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:02,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276846372] [2021-10-16 03:15:02,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:02,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:02,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:02,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:02,434 INFO L87 Difference]: Start difference. First operand 582 states and 810 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:02,584 INFO L93 Difference]: Finished difference Result 874 states and 1236 transitions. [2021-10-16 03:15:02,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:02,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-10-16 03:15:02,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:02,590 INFO L225 Difference]: With dead ends: 874 [2021-10-16 03:15:02,590 INFO L226 Difference]: Without dead ends: 874 [2021-10-16 03:15:02,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:02,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2021-10-16 03:15:02,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 592. [2021-10-16 03:15:02,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 566 states have (on average 1.4505300353356891) internal successors, (821), 591 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 821 transitions. [2021-10-16 03:15:02,610 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 821 transitions. Word has length 20 [2021-10-16 03:15:02,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:02,610 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 821 transitions. [2021-10-16 03:15:02,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,611 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 821 transitions. [2021-10-16 03:15:02,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-16 03:15:02,612 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:02,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:02,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-16 03:15:02,612 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:02,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:02,613 INFO L82 PathProgramCache]: Analyzing trace with hash 54236982, now seen corresponding path program 1 times [2021-10-16 03:15:02,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:02,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605973184] [2021-10-16 03:15:02,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:02,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:02,643 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:02,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605973184] [2021-10-16 03:15:02,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605973184] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:02,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:02,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:02,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651140738] [2021-10-16 03:15:02,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:02,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:02,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:02,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:02,646 INFO L87 Difference]: Start difference. First operand 592 states and 821 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:02,757 INFO L93 Difference]: Finished difference Result 608 states and 839 transitions. [2021-10-16 03:15:02,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:02,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-10-16 03:15:02,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:02,762 INFO L225 Difference]: With dead ends: 608 [2021-10-16 03:15:02,762 INFO L226 Difference]: Without dead ends: 608 [2021-10-16 03:15:02,762 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:02,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2021-10-16 03:15:02,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2021-10-16 03:15:02,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 584 states have (on average 1.4366438356164384) internal successors, (839), 607 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 839 transitions. [2021-10-16 03:15:02,777 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 839 transitions. Word has length 20 [2021-10-16 03:15:02,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:02,778 INFO L470 AbstractCegarLoop]: Abstraction has 608 states and 839 transitions. [2021-10-16 03:15:02,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:02,778 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 839 transitions. [2021-10-16 03:15:02,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-16 03:15:02,779 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:02,779 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:02,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-16 03:15:02,780 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:02,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:02,780 INFO L82 PathProgramCache]: Analyzing trace with hash 614845220, now seen corresponding path program 1 times [2021-10-16 03:15:02,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:02,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678478068] [2021-10-16 03:15:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:02,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:02,815 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:02,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678478068] [2021-10-16 03:15:02,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678478068] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:02,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:02,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:02,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604296204] [2021-10-16 03:15:02,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:02,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:02,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:02,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:02,817 INFO L87 Difference]: Start difference. First operand 608 states and 839 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:03,013 INFO L93 Difference]: Finished difference Result 890 states and 1253 transitions. [2021-10-16 03:15:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:03,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-10-16 03:15:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:03,019 INFO L225 Difference]: With dead ends: 890 [2021-10-16 03:15:03,019 INFO L226 Difference]: Without dead ends: 890 [2021-10-16 03:15:03,019 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:03,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2021-10-16 03:15:03,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 608. [2021-10-16 03:15:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 584 states have (on average 1.4349315068493151) internal successors, (838), 607 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 838 transitions. [2021-10-16 03:15:03,037 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 838 transitions. Word has length 21 [2021-10-16 03:15:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:03,038 INFO L470 AbstractCegarLoop]: Abstraction has 608 states and 838 transitions. [2021-10-16 03:15:03,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,038 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 838 transitions. [2021-10-16 03:15:03,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 03:15:03,039 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:03,039 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:03,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-16 03:15:03,040 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:03,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:03,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1347013313, now seen corresponding path program 1 times [2021-10-16 03:15:03,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:03,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697291775] [2021-10-16 03:15:03,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:03,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:03,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:03,091 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:03,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697291775] [2021-10-16 03:15:03,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697291775] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:03,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:03,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:03,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517616511] [2021-10-16 03:15:03,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:03,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:03,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:03,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:03,094 INFO L87 Difference]: Start difference. First operand 608 states and 838 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:03,250 INFO L93 Difference]: Finished difference Result 669 states and 898 transitions. [2021-10-16 03:15:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:15:03,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-10-16 03:15:03,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:03,255 INFO L225 Difference]: With dead ends: 669 [2021-10-16 03:15:03,255 INFO L226 Difference]: Without dead ends: 667 [2021-10-16 03:15:03,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:15:03,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-10-16 03:15:03,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 615. [2021-10-16 03:15:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 591 states have (on average 1.4297800338409477) internal successors, (845), 614 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 845 transitions. [2021-10-16 03:15:03,270 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 845 transitions. Word has length 22 [2021-10-16 03:15:03,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:03,271 INFO L470 AbstractCegarLoop]: Abstraction has 615 states and 845 transitions. [2021-10-16 03:15:03,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,271 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 845 transitions. [2021-10-16 03:15:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 03:15:03,272 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:03,272 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:03,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-16 03:15:03,273 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:03,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1347001397, now seen corresponding path program 1 times [2021-10-16 03:15:03,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:03,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763106711] [2021-10-16 03:15:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:03,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:03,320 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:03,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763106711] [2021-10-16 03:15:03,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763106711] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:03,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:03,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:03,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506866821] [2021-10-16 03:15:03,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:03,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:03,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:03,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:03,322 INFO L87 Difference]: Start difference. First operand 615 states and 845 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:03,517 INFO L93 Difference]: Finished difference Result 893 states and 1256 transitions. [2021-10-16 03:15:03,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:03,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-10-16 03:15:03,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:03,522 INFO L225 Difference]: With dead ends: 893 [2021-10-16 03:15:03,522 INFO L226 Difference]: Without dead ends: 874 [2021-10-16 03:15:03,523 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:03,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2021-10-16 03:15:03,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 600. [2021-10-16 03:15:03,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 576 states have (on average 1.4375) internal successors, (828), 599 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 828 transitions. [2021-10-16 03:15:03,539 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 828 transitions. Word has length 22 [2021-10-16 03:15:03,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:03,540 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 828 transitions. [2021-10-16 03:15:03,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,540 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 828 transitions. [2021-10-16 03:15:03,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 03:15:03,541 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:03,541 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:03,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-16 03:15:03,542 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:03,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:03,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1544802929, now seen corresponding path program 1 times [2021-10-16 03:15:03,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:03,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024608066] [2021-10-16 03:15:03,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:03,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:03,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:03,580 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:03,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024608066] [2021-10-16 03:15:03,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024608066] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:03,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:03,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:03,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847017909] [2021-10-16 03:15:03,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:03,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:03,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:03,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:03,583 INFO L87 Difference]: Start difference. First operand 600 states and 828 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:03,744 INFO L93 Difference]: Finished difference Result 815 states and 1134 transitions. [2021-10-16 03:15:03,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:03,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-10-16 03:15:03,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:03,749 INFO L225 Difference]: With dead ends: 815 [2021-10-16 03:15:03,749 INFO L226 Difference]: Without dead ends: 815 [2021-10-16 03:15:03,750 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:03,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2021-10-16 03:15:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 624. [2021-10-16 03:15:03,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 600 states have (on average 1.44) internal successors, (864), 623 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 864 transitions. [2021-10-16 03:15:03,767 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 864 transitions. Word has length 22 [2021-10-16 03:15:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:03,767 INFO L470 AbstractCegarLoop]: Abstraction has 624 states and 864 transitions. [2021-10-16 03:15:03,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 864 transitions. [2021-10-16 03:15:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 03:15:03,768 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:03,768 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:03,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-16 03:15:03,769 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:03,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:03,769 INFO L82 PathProgramCache]: Analyzing trace with hash 707895288, now seen corresponding path program 1 times [2021-10-16 03:15:03,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:03,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950588226] [2021-10-16 03:15:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:03,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:03,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:03,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:03,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950588226] [2021-10-16 03:15:03,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950588226] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:03,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:03,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:15:03,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589857416] [2021-10-16 03:15:03,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:03,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:03,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:03,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:03,883 INFO L87 Difference]: Start difference. First operand 624 states and 864 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:03,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:03,985 INFO L93 Difference]: Finished difference Result 934 states and 1286 transitions. [2021-10-16 03:15:03,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:03,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-10-16 03:15:03,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:03,991 INFO L225 Difference]: With dead ends: 934 [2021-10-16 03:15:03,991 INFO L226 Difference]: Without dead ends: 934 [2021-10-16 03:15:03,991 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:03,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2021-10-16 03:15:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 660. [2021-10-16 03:15:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 636 states have (on average 1.4150943396226414) internal successors, (900), 659 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 900 transitions. [2021-10-16 03:15:04,011 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 900 transitions. Word has length 22 [2021-10-16 03:15:04,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:04,011 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 900 transitions. [2021-10-16 03:15:04,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,011 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 900 transitions. [2021-10-16 03:15:04,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-16 03:15:04,012 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:04,012 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:04,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-16 03:15:04,013 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:04,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1855206658, now seen corresponding path program 1 times [2021-10-16 03:15:04,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:04,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281278625] [2021-10-16 03:15:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:04,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:04,051 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:04,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281278625] [2021-10-16 03:15:04,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281278625] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:04,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:04,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:04,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399123728] [2021-10-16 03:15:04,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:04,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:04,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:04,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:04,053 INFO L87 Difference]: Start difference. First operand 660 states and 900 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:04,104 INFO L93 Difference]: Finished difference Result 687 states and 925 transitions. [2021-10-16 03:15:04,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 03:15:04,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-16 03:15:04,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:04,108 INFO L225 Difference]: With dead ends: 687 [2021-10-16 03:15:04,109 INFO L226 Difference]: Without dead ends: 658 [2021-10-16 03:15:04,109 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:15:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-10-16 03:15:04,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2021-10-16 03:15:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 634 states have (on average 1.413249211356467) internal successors, (896), 657 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 896 transitions. [2021-10-16 03:15:04,125 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 896 transitions. Word has length 23 [2021-10-16 03:15:04,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:04,125 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 896 transitions. [2021-10-16 03:15:04,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,126 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 896 transitions. [2021-10-16 03:15:04,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-16 03:15:04,126 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:04,126 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:04,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-16 03:15:04,127 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:04,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:04,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1705702936, now seen corresponding path program 1 times [2021-10-16 03:15:04,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:04,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603738844] [2021-10-16 03:15:04,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:04,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:04,159 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:04,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603738844] [2021-10-16 03:15:04,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603738844] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:04,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:04,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:04,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785576362] [2021-10-16 03:15:04,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:04,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:04,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:04,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:04,162 INFO L87 Difference]: Start difference. First operand 658 states and 896 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:04,305 INFO L93 Difference]: Finished difference Result 658 states and 894 transitions. [2021-10-16 03:15:04,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:04,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-16 03:15:04,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:04,309 INFO L225 Difference]: With dead ends: 658 [2021-10-16 03:15:04,309 INFO L226 Difference]: Without dead ends: 658 [2021-10-16 03:15:04,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:04,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-10-16 03:15:04,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2021-10-16 03:15:04,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 634 states have (on average 1.4100946372239747) internal successors, (894), 657 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 894 transitions. [2021-10-16 03:15:04,348 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 894 transitions. Word has length 23 [2021-10-16 03:15:04,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:04,349 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 894 transitions. [2021-10-16 03:15:04,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 894 transitions. [2021-10-16 03:15:04,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-16 03:15:04,351 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:04,351 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:04,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-16 03:15:04,352 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:04,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:04,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2054493699, now seen corresponding path program 1 times [2021-10-16 03:15:04,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:04,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774974572] [2021-10-16 03:15:04,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:04,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:04,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:04,409 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:04,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774974572] [2021-10-16 03:15:04,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774974572] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:04,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:04,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:04,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873127415] [2021-10-16 03:15:04,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:04,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:04,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:04,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:04,412 INFO L87 Difference]: Start difference. First operand 658 states and 894 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:04,564 INFO L93 Difference]: Finished difference Result 673 states and 897 transitions. [2021-10-16 03:15:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:04,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-16 03:15:04,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:04,568 INFO L225 Difference]: With dead ends: 673 [2021-10-16 03:15:04,568 INFO L226 Difference]: Without dead ends: 673 [2021-10-16 03:15:04,568 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:04,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2021-10-16 03:15:04,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 658. [2021-10-16 03:15:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 634 states have (on average 1.391167192429022) internal successors, (882), 657 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 882 transitions. [2021-10-16 03:15:04,585 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 882 transitions. Word has length 23 [2021-10-16 03:15:04,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:04,585 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 882 transitions. [2021-10-16 03:15:04,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,586 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 882 transitions. [2021-10-16 03:15:04,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 03:15:04,586 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:04,586 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:04,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-16 03:15:04,587 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:04,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1726712738, now seen corresponding path program 1 times [2021-10-16 03:15:04,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:04,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561488103] [2021-10-16 03:15:04,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:04,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:04,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:04,614 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:04,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561488103] [2021-10-16 03:15:04,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561488103] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:04,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:04,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:04,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634328550] [2021-10-16 03:15:04,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:04,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:04,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:04,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:04,616 INFO L87 Difference]: Start difference. First operand 658 states and 882 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:04,777 INFO L93 Difference]: Finished difference Result 886 states and 1213 transitions. [2021-10-16 03:15:04,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:04,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-16 03:15:04,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:04,783 INFO L225 Difference]: With dead ends: 886 [2021-10-16 03:15:04,783 INFO L226 Difference]: Without dead ends: 886 [2021-10-16 03:15:04,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:04,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-10-16 03:15:04,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 654. [2021-10-16 03:15:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 631 states have (on average 1.388272583201268) internal successors, (876), 653 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 876 transitions. [2021-10-16 03:15:04,802 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 876 transitions. Word has length 24 [2021-10-16 03:15:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:04,803 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 876 transitions. [2021-10-16 03:15:04,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 876 transitions. [2021-10-16 03:15:04,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 03:15:04,804 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:04,804 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:04,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-16 03:15:04,804 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:04,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:04,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1478595672, now seen corresponding path program 1 times [2021-10-16 03:15:04,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:04,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292642692] [2021-10-16 03:15:04,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:04,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:04,864 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:04,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292642692] [2021-10-16 03:15:04,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292642692] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:04,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:04,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:04,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425126949] [2021-10-16 03:15:04,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:04,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:04,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:04,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:04,866 INFO L87 Difference]: Start difference. First operand 654 states and 876 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:05,017 INFO L93 Difference]: Finished difference Result 657 states and 877 transitions. [2021-10-16 03:15:05,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:05,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-16 03:15:05,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:05,020 INFO L225 Difference]: With dead ends: 657 [2021-10-16 03:15:05,021 INFO L226 Difference]: Without dead ends: 657 [2021-10-16 03:15:05,021 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:05,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-10-16 03:15:05,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 642. [2021-10-16 03:15:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 619 states have (on average 1.3925686591276252) internal successors, (862), 641 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 862 transitions. [2021-10-16 03:15:05,037 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 862 transitions. Word has length 24 [2021-10-16 03:15:05,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:05,037 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 862 transitions. [2021-10-16 03:15:05,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,037 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 862 transitions. [2021-10-16 03:15:05,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 03:15:05,038 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:05,038 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:05,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-16 03:15:05,039 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:05,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1622118277, now seen corresponding path program 1 times [2021-10-16 03:15:05,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:05,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924783394] [2021-10-16 03:15:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:05,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:05,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:05,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924783394] [2021-10-16 03:15:05,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924783394] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:05,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:05,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:05,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147069141] [2021-10-16 03:15:05,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:05,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:05,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:05,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:05,083 INFO L87 Difference]: Start difference. First operand 642 states and 862 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:05,108 INFO L93 Difference]: Finished difference Result 260 states and 316 transitions. [2021-10-16 03:15:05,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:05,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-16 03:15:05,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:05,111 INFO L225 Difference]: With dead ends: 260 [2021-10-16 03:15:05,111 INFO L226 Difference]: Without dead ends: 260 [2021-10-16 03:15:05,111 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:05,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-10-16 03:15:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2021-10-16 03:15:05,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 246 states have (on average 1.2845528455284554) internal successors, (316), 259 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 316 transitions. [2021-10-16 03:15:05,122 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 316 transitions. Word has length 24 [2021-10-16 03:15:05,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:05,122 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 316 transitions. [2021-10-16 03:15:05,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 316 transitions. [2021-10-16 03:15:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 03:15:05,123 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:05,124 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:05,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-16 03:15:05,124 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:05,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:05,124 INFO L82 PathProgramCache]: Analyzing trace with hash 502548810, now seen corresponding path program 1 times [2021-10-16 03:15:05,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:05,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385895313] [2021-10-16 03:15:05,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:05,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:05,205 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:05,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385895313] [2021-10-16 03:15:05,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385895313] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:05,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:05,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:05,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749458921] [2021-10-16 03:15:05,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:05,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:05,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:05,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:05,207 INFO L87 Difference]: Start difference. First operand 260 states and 316 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:05,402 INFO L93 Difference]: Finished difference Result 275 states and 332 transitions. [2021-10-16 03:15:05,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:15:05,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2021-10-16 03:15:05,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:05,404 INFO L225 Difference]: With dead ends: 275 [2021-10-16 03:15:05,404 INFO L226 Difference]: Without dead ends: 275 [2021-10-16 03:15:05,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.9ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:15:05,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-10-16 03:15:05,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 260. [2021-10-16 03:15:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 246 states have (on average 1.2845528455284554) internal successors, (316), 259 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 316 transitions. [2021-10-16 03:15:05,410 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 316 transitions. Word has length 24 [2021-10-16 03:15:05,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:05,411 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 316 transitions. [2021-10-16 03:15:05,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,411 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 316 transitions. [2021-10-16 03:15:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 03:15:05,411 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:05,411 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:05,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-16 03:15:05,412 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:05,412 INFO L82 PathProgramCache]: Analyzing trace with hash 2006079016, now seen corresponding path program 1 times [2021-10-16 03:15:05,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:05,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876660518] [2021-10-16 03:15:05,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:05,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:05,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:05,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876660518] [2021-10-16 03:15:05,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876660518] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:05,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:05,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:15:05,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347394252] [2021-10-16 03:15:05,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:05,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:05,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:05,490 INFO L87 Difference]: Start difference. First operand 260 states and 316 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:05,532 INFO L93 Difference]: Finished difference Result 272 states and 327 transitions. [2021-10-16 03:15:05,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:05,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-10-16 03:15:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:05,534 INFO L225 Difference]: With dead ends: 272 [2021-10-16 03:15:05,534 INFO L226 Difference]: Without dead ends: 271 [2021-10-16 03:15:05,535 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-10-16 03:15:05,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 266. [2021-10-16 03:15:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 252 states have (on average 1.2777777777777777) internal successors, (322), 265 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 322 transitions. [2021-10-16 03:15:05,541 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 322 transitions. Word has length 25 [2021-10-16 03:15:05,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:05,541 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 322 transitions. [2021-10-16 03:15:05,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,542 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 322 transitions. [2021-10-16 03:15:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 03:15:05,542 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:05,542 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:05,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-16 03:15:05,543 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:05,543 INFO L82 PathProgramCache]: Analyzing trace with hash 2006067100, now seen corresponding path program 1 times [2021-10-16 03:15:05,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:05,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987343207] [2021-10-16 03:15:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:05,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:05,608 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:05,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987343207] [2021-10-16 03:15:05,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987343207] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:05,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:05,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:05,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830115162] [2021-10-16 03:15:05,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:05,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:05,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:05,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:05,611 INFO L87 Difference]: Start difference. First operand 266 states and 322 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:05,716 INFO L93 Difference]: Finished difference Result 268 states and 322 transitions. [2021-10-16 03:15:05,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:05,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-10-16 03:15:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:05,719 INFO L225 Difference]: With dead ends: 268 [2021-10-16 03:15:05,720 INFO L226 Difference]: Without dead ends: 251 [2021-10-16 03:15:05,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:05,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-10-16 03:15:05,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2021-10-16 03:15:05,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 237 states have (on average 1.2869198312236287) internal successors, (305), 250 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 305 transitions. [2021-10-16 03:15:05,726 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 305 transitions. Word has length 25 [2021-10-16 03:15:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:05,726 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 305 transitions. [2021-10-16 03:15:05,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 305 transitions. [2021-10-16 03:15:05,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 03:15:05,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:05,727 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:05,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-16 03:15:05,728 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:05,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:05,728 INFO L82 PathProgramCache]: Analyzing trace with hash -494569094, now seen corresponding path program 1 times [2021-10-16 03:15:05,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:05,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265208226] [2021-10-16 03:15:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:05,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:05,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:05,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265208226] [2021-10-16 03:15:05,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265208226] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:05,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:05,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:15:05,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378495285] [2021-10-16 03:15:05,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:15:05,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:05,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:15:05,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:05,760 INFO L87 Difference]: Start difference. First operand 251 states and 305 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:05,788 INFO L93 Difference]: Finished difference Result 277 states and 329 transitions. [2021-10-16 03:15:05,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:15:05,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-10-16 03:15:05,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:05,790 INFO L225 Difference]: With dead ends: 277 [2021-10-16 03:15:05,790 INFO L226 Difference]: Without dead ends: 277 [2021-10-16 03:15:05,792 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:15:05,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-10-16 03:15:05,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 227. [2021-10-16 03:15:05,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 219 states have (on average 1.2283105022831051) internal successors, (269), 226 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 269 transitions. [2021-10-16 03:15:05,798 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 269 transitions. Word has length 25 [2021-10-16 03:15:05,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:05,798 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 269 transitions. [2021-10-16 03:15:05,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,798 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 269 transitions. [2021-10-16 03:15:05,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-16 03:15:05,799 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:05,799 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:05,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-16 03:15:05,800 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:05,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:05,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1378140045, now seen corresponding path program 1 times [2021-10-16 03:15:05,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:05,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737093474] [2021-10-16 03:15:05,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:05,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:05,840 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:05,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737093474] [2021-10-16 03:15:05,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737093474] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:05,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:05,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:05,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030255734] [2021-10-16 03:15:05,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:05,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:05,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:05,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:05,842 INFO L87 Difference]: Start difference. First operand 227 states and 269 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:05,871 INFO L93 Difference]: Finished difference Result 238 states and 279 transitions. [2021-10-16 03:15:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:15:05,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 27 [2021-10-16 03:15:05,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:05,873 INFO L225 Difference]: With dead ends: 238 [2021-10-16 03:15:05,873 INFO L226 Difference]: Without dead ends: 217 [2021-10-16 03:15:05,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:15:05,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-10-16 03:15:05,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-10-16 03:15:05,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 209 states have (on average 1.229665071770335) internal successors, (257), 216 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 257 transitions. [2021-10-16 03:15:05,879 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 257 transitions. Word has length 27 [2021-10-16 03:15:05,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:05,880 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 257 transitions. [2021-10-16 03:15:05,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,880 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 257 transitions. [2021-10-16 03:15:05,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-16 03:15:05,881 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:05,881 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:05,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-16 03:15:05,881 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:05,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:05,882 INFO L82 PathProgramCache]: Analyzing trace with hash -169609689, now seen corresponding path program 1 times [2021-10-16 03:15:05,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:05,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569357322] [2021-10-16 03:15:05,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:05,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:05,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:05,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569357322] [2021-10-16 03:15:05,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569357322] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:05,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:05,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:05,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714722208] [2021-10-16 03:15:05,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:05,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:05,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:05,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:05,920 INFO L87 Difference]: Start difference. First operand 217 states and 257 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:05,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:05,995 INFO L93 Difference]: Finished difference Result 215 states and 255 transitions. [2021-10-16 03:15:05,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:15:05,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 27 [2021-10-16 03:15:05,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:05,997 INFO L225 Difference]: With dead ends: 215 [2021-10-16 03:15:05,997 INFO L226 Difference]: Without dead ends: 197 [2021-10-16 03:15:05,997 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:15:05,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-16 03:15:06,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-10-16 03:15:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 190 states have (on average 1.2473684210526317) internal successors, (237), 196 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 237 transitions. [2021-10-16 03:15:06,003 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 237 transitions. Word has length 27 [2021-10-16 03:15:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:06,004 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 237 transitions. [2021-10-16 03:15:06,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,005 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 237 transitions. [2021-10-16 03:15:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-16 03:15:06,005 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:06,006 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:06,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-16 03:15:06,006 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:06,007 INFO L82 PathProgramCache]: Analyzing trace with hash 101877003, now seen corresponding path program 1 times [2021-10-16 03:15:06,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:06,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946726707] [2021-10-16 03:15:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:06,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:06,055 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:06,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946726707] [2021-10-16 03:15:06,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946726707] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:06,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:06,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:15:06,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730227567] [2021-10-16 03:15:06,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:15:06,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:06,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:15:06,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:06,058 INFO L87 Difference]: Start difference. First operand 197 states and 237 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:06,159 INFO L93 Difference]: Finished difference Result 234 states and 285 transitions. [2021-10-16 03:15:06,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:15:06,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-10-16 03:15:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:06,161 INFO L225 Difference]: With dead ends: 234 [2021-10-16 03:15:06,161 INFO L226 Difference]: Without dead ends: 234 [2021-10-16 03:15:06,162 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:15:06,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-10-16 03:15:06,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 178. [2021-10-16 03:15:06,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.254335260115607) internal successors, (217), 177 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2021-10-16 03:15:06,168 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 28 [2021-10-16 03:15:06,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:06,168 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2021-10-16 03:15:06,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,169 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2021-10-16 03:15:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 03:15:06,169 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:06,170 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:06,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-16 03:15:06,170 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:06,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:06,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1362411376, now seen corresponding path program 1 times [2021-10-16 03:15:06,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:06,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936514802] [2021-10-16 03:15:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:06,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:06,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:06,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:06,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936514802] [2021-10-16 03:15:06,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936514802] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:06,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:06,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:06,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444363870] [2021-10-16 03:15:06,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:06,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:06,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:06,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:06,254 INFO L87 Difference]: Start difference. First operand 178 states and 217 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:06,398 INFO L93 Difference]: Finished difference Result 227 states and 277 transitions. [2021-10-16 03:15:06,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:15:06,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-16 03:15:06,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:06,400 INFO L225 Difference]: With dead ends: 227 [2021-10-16 03:15:06,400 INFO L226 Difference]: Without dead ends: 227 [2021-10-16 03:15:06,400 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.5ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:15:06,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-16 03:15:06,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 168. [2021-10-16 03:15:06,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 164 states have (on average 1.2439024390243902) internal successors, (204), 167 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 204 transitions. [2021-10-16 03:15:06,405 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 204 transitions. Word has length 37 [2021-10-16 03:15:06,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:06,405 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 204 transitions. [2021-10-16 03:15:06,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 204 transitions. [2021-10-16 03:15:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-16 03:15:06,406 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:06,407 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:06,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-16 03:15:06,407 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:06,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:06,407 INFO L82 PathProgramCache]: Analyzing trace with hash -2027588443, now seen corresponding path program 1 times [2021-10-16 03:15:06,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:06,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175881732] [2021-10-16 03:15:06,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:06,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:06,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:06,494 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:06,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175881732] [2021-10-16 03:15:06,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175881732] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:06,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:06,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-16 03:15:06,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647662204] [2021-10-16 03:15:06,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 03:15:06,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:06,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 03:15:06,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:15:06,496 INFO L87 Difference]: Start difference. First operand 168 states and 204 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:06,666 INFO L93 Difference]: Finished difference Result 305 states and 369 transitions. [2021-10-16 03:15:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 03:15:06,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 38 [2021-10-16 03:15:06,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:06,668 INFO L225 Difference]: With dead ends: 305 [2021-10-16 03:15:06,668 INFO L226 Difference]: Without dead ends: 289 [2021-10-16 03:15:06,668 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 133.7ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-16 03:15:06,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-10-16 03:15:06,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 168. [2021-10-16 03:15:06,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 164 states have (on average 1.2378048780487805) internal successors, (203), 167 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 203 transitions. [2021-10-16 03:15:06,674 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 203 transitions. Word has length 38 [2021-10-16 03:15:06,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:06,674 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 203 transitions. [2021-10-16 03:15:06,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 203 transitions. [2021-10-16 03:15:06,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-16 03:15:06,675 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:06,675 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:06,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-16 03:15:06,675 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:06,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:06,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1509921306, now seen corresponding path program 1 times [2021-10-16 03:15:06,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:06,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582656656] [2021-10-16 03:15:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:06,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:06,765 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:06,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582656656] [2021-10-16 03:15:06,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582656656] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:06,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:06,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-16 03:15:06,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081715280] [2021-10-16 03:15:06,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 03:15:06,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:06,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 03:15:06,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:15:06,768 INFO L87 Difference]: Start difference. First operand 168 states and 203 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:06,887 INFO L93 Difference]: Finished difference Result 287 states and 351 transitions. [2021-10-16 03:15:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 03:15:06,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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 39 [2021-10-16 03:15:06,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:06,889 INFO L225 Difference]: With dead ends: 287 [2021-10-16 03:15:06,890 INFO L226 Difference]: Without dead ends: 262 [2021-10-16 03:15:06,890 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.3ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-16 03:15:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-10-16 03:15:06,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 256. [2021-10-16 03:15:06,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 252 states have (on average 1.2301587301587302) internal successors, (310), 255 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 310 transitions. [2021-10-16 03:15:06,898 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 310 transitions. Word has length 39 [2021-10-16 03:15:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:06,898 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 310 transitions. [2021-10-16 03:15:06,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 310 transitions. [2021-10-16 03:15:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-16 03:15:06,899 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:06,900 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:06,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-16 03:15:06,900 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:06,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1106424513, now seen corresponding path program 1 times [2021-10-16 03:15:06,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:06,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704641275] [2021-10-16 03:15:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:06,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:06,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:06,946 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:06,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704641275] [2021-10-16 03:15:06,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704641275] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:06,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:06,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:06,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125048485] [2021-10-16 03:15:06,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:06,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:06,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:06,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:06,949 INFO L87 Difference]: Start difference. First operand 256 states and 310 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:06,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:06,992 INFO L93 Difference]: Finished difference Result 353 states and 418 transitions. [2021-10-16 03:15:06,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:15:06,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 41 [2021-10-16 03:15:06,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:06,995 INFO L225 Difference]: With dead ends: 353 [2021-10-16 03:15:06,995 INFO L226 Difference]: Without dead ends: 353 [2021-10-16 03:15:06,996 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:06,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-10-16 03:15:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 256. [2021-10-16 03:15:07,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 252 states have (on average 1.2222222222222223) internal successors, (308), 255 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 308 transitions. [2021-10-16 03:15:07,004 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 308 transitions. Word has length 41 [2021-10-16 03:15:07,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:07,005 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 308 transitions. [2021-10-16 03:15:07,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 308 transitions. [2021-10-16 03:15:07,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-16 03:15:07,006 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:07,006 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:07,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-16 03:15:07,007 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:07,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1174481534, now seen corresponding path program 1 times [2021-10-16 03:15:07,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:07,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122645571] [2021-10-16 03:15:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:07,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:07,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:07,089 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:07,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122645571] [2021-10-16 03:15:07,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122645571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:07,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:07,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-16 03:15:07,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020460567] [2021-10-16 03:15:07,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 03:15:07,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:07,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 03:15:07,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:15:07,092 INFO L87 Difference]: Start difference. First operand 256 states and 308 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:07,218 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2021-10-16 03:15:07,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 03:15:07,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 41 [2021-10-16 03:15:07,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:07,220 INFO L225 Difference]: With dead ends: 275 [2021-10-16 03:15:07,220 INFO L226 Difference]: Without dead ends: 240 [2021-10-16 03:15:07,221 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 95.8ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-16 03:15:07,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-16 03:15:07,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 234. [2021-10-16 03:15:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 230 states have (on average 1.2347826086956522) internal successors, (284), 233 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 284 transitions. [2021-10-16 03:15:07,227 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 284 transitions. Word has length 41 [2021-10-16 03:15:07,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:07,227 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 284 transitions. [2021-10-16 03:15:07,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 284 transitions. [2021-10-16 03:15:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-16 03:15:07,228 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:07,229 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:07,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-16 03:15:07,229 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:07,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:07,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1266162763, now seen corresponding path program 1 times [2021-10-16 03:15:07,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:07,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063024898] [2021-10-16 03:15:07,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:07,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:07,328 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:07,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063024898] [2021-10-16 03:15:07,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063024898] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:07,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:07,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-16 03:15:07,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138926008] [2021-10-16 03:15:07,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 03:15:07,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:07,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 03:15:07,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:15:07,332 INFO L87 Difference]: Start difference. First operand 234 states and 284 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:07,445 INFO L93 Difference]: Finished difference Result 238 states and 285 transitions. [2021-10-16 03:15:07,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 03:15:07,446 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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 42 [2021-10-16 03:15:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:07,447 INFO L225 Difference]: With dead ends: 238 [2021-10-16 03:15:07,448 INFO L226 Difference]: Without dead ends: 213 [2021-10-16 03:15:07,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 93.6ms TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-10-16 03:15:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-16 03:15:07,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 119. [2021-10-16 03:15:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.1810344827586208) internal successors, (137), 118 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2021-10-16 03:15:07,452 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 42 [2021-10-16 03:15:07,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:07,452 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2021-10-16 03:15:07,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,453 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2021-10-16 03:15:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-16 03:15:07,453 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:07,453 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:07,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-16 03:15:07,454 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:07,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:07,454 INFO L82 PathProgramCache]: Analyzing trace with hash -626528115, now seen corresponding path program 1 times [2021-10-16 03:15:07,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:07,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357280542] [2021-10-16 03:15:07,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:07,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:07,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:07,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357280542] [2021-10-16 03:15:07,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357280542] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:07,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:07,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:07,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956781244] [2021-10-16 03:15:07,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:07,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:07,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:07,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:07,541 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:07,658 INFO L93 Difference]: Finished difference Result 168 states and 188 transitions. [2021-10-16 03:15:07,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:15:07,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 51 [2021-10-16 03:15:07,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:07,660 INFO L225 Difference]: With dead ends: 168 [2021-10-16 03:15:07,660 INFO L226 Difference]: Without dead ends: 166 [2021-10-16 03:15:07,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.9ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:15:07,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-16 03:15:07,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 108. [2021-10-16 03:15:07,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 107 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2021-10-16 03:15:07,664 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 51 [2021-10-16 03:15:07,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:07,665 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2021-10-16 03:15:07,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2021-10-16 03:15:07,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-16 03:15:07,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:07,666 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:07,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-16 03:15:07,666 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:07,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:07,667 INFO L82 PathProgramCache]: Analyzing trace with hash 210630491, now seen corresponding path program 1 times [2021-10-16 03:15:07,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:07,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847327677] [2021-10-16 03:15:07,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:07,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:07,736 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:07,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847327677] [2021-10-16 03:15:07,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847327677] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:07,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:07,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:07,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879265921] [2021-10-16 03:15:07,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:07,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:07,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:07,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:07,738 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:07,863 INFO L93 Difference]: Finished difference Result 164 states and 180 transitions. [2021-10-16 03:15:07,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:15:07,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-10-16 03:15:07,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:07,865 INFO L225 Difference]: With dead ends: 164 [2021-10-16 03:15:07,865 INFO L226 Difference]: Without dead ends: 160 [2021-10-16 03:15:07,865 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:15:07,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-16 03:15:07,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 108. [2021-10-16 03:15:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.1415094339622642) internal successors, (121), 107 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 121 transitions. [2021-10-16 03:15:07,868 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 121 transitions. Word has length 63 [2021-10-16 03:15:07,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:07,869 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 121 transitions. [2021-10-16 03:15:07,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:07,869 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 121 transitions. [2021-10-16 03:15:07,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-16 03:15:07,870 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:07,870 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:07,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-16 03:15:07,870 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:07,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:07,871 INFO L82 PathProgramCache]: Analyzing trace with hash -979724378, now seen corresponding path program 1 times [2021-10-16 03:15:07,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:07,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317620409] [2021-10-16 03:15:07,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:07,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:07,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:07,954 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:07,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317620409] [2021-10-16 03:15:07,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317620409] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:07,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:07,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:07,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398508919] [2021-10-16 03:15:07,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:07,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:07,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:07,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:07,957 INFO L87 Difference]: Start difference. First operand 108 states and 121 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:08,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:08,100 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2021-10-16 03:15:08,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:15:08,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 64 [2021-10-16 03:15:08,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:08,101 INFO L225 Difference]: With dead ends: 150 [2021-10-16 03:15:08,101 INFO L226 Difference]: Without dead ends: 148 [2021-10-16 03:15:08,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.8ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:15:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-16 03:15:08,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 99. [2021-10-16 03:15:08,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.1326530612244898) internal successors, (111), 98 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:08,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2021-10-16 03:15:08,105 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 64 [2021-10-16 03:15:08,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:08,105 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2021-10-16 03:15:08,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:08,106 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2021-10-16 03:15:08,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-16 03:15:08,106 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:15:08,106 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:15:08,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-16 03:15:08,107 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 49 more)] === [2021-10-16 03:15:08,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:15:08,107 INFO L82 PathProgramCache]: Analyzing trace with hash 456981697, now seen corresponding path program 1 times [2021-10-16 03:15:08,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:15:08,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753262780] [2021-10-16 03:15:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:15:08,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:15:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:15:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:15:08,179 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:15:08,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753262780] [2021-10-16 03:15:08,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753262780] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:15:08,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:15:08,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:15:08,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989863238] [2021-10-16 03:15:08,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:15:08,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:15:08,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:15:08,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:15:08,182 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:08,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:15:08,286 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2021-10-16 03:15:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:15:08,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 65 [2021-10-16 03:15:08,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:15:08,287 INFO L225 Difference]: With dead ends: 132 [2021-10-16 03:15:08,287 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 03:15:08,287 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.1ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:15:08,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 03:15:08,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 03:15:08,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:08,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 03:15:08,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2021-10-16 03:15:08,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:15:08,288 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 03:15:08,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:15:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 03:15:08,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 03:15:08,291 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,292 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,292 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,292 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,292 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,293 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,293 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,293 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,293 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,293 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,294 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,294 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,294 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,294 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,294 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,294 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,295 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,295 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,295 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,295 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,295 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,296 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,296 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,296 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,296 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,296 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,297 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,297 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,297 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,297 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,297 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,297 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,301 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,301 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,301 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,301 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:15:08,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-16 03:15:08,306 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:15:08,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:15:08 BoogieIcfgContainer [2021-10-16 03:15:08,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:15:08,309 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:15:08,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:15:08,310 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:15:08,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:14:59" (3/4) ... [2021-10-16 03:15:08,316 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 03:15:08,365 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 282 nodes and edges [2021-10-16 03:15:08,371 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2021-10-16 03:15:08,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-16 03:15:08,382 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-16 03:15:08,647 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:15:08,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:15:08,649 INFO L168 Benchmark]: Toolchain (without parser) took 12794.80 ms. Allocated memory was 96.5 MB in the beginning and 257.9 MB in the end (delta: 161.5 MB). Free memory was 62.1 MB in the beginning and 141.6 MB in the end (delta: -79.5 MB). Peak memory consumption was 82.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:15:08,649 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:15:08,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.29 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.9 MB in the beginning and 83.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:15:08,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.87 ms. Allocated memory is still 117.4 MB. Free memory was 83.4 MB in the beginning and 71.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:15:08,650 INFO L168 Benchmark]: Boogie Preprocessor took 155.34 ms. Allocated memory is still 117.4 MB. Free memory was 71.8 MB in the beginning and 65.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:15:08,651 INFO L168 Benchmark]: RCFGBuilder took 2899.90 ms. Allocated memory was 117.4 MB in the beginning and 165.7 MB in the end (delta: 48.2 MB). Free memory was 64.7 MB in the beginning and 58.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:15:08,651 INFO L168 Benchmark]: TraceAbstraction took 8701.78 ms. Allocated memory was 165.7 MB in the beginning and 257.9 MB in the end (delta: 92.3 MB). Free memory was 57.7 MB in the beginning and 189.3 MB in the end (delta: -131.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:15:08,652 INFO L168 Benchmark]: Witness Printer took 337.86 ms. Allocated memory is still 257.9 MB. Free memory was 189.3 MB in the beginning and 141.6 MB in the end (delta: 47.7 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:15:08,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 553.29 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.9 MB in the beginning and 83.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 139.87 ms. Allocated memory is still 117.4 MB. Free memory was 83.4 MB in the beginning and 71.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 155.34 ms. Allocated memory is still 117.4 MB. Free memory was 71.8 MB in the beginning and 65.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2899.90 ms. Allocated memory was 117.4 MB in the beginning and 165.7 MB in the end (delta: 48.2 MB). Free memory was 64.7 MB in the beginning and 58.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8701.78 ms. Allocated memory was 165.7 MB in the beginning and 257.9 MB in the end (delta: 92.3 MB). Free memory was 57.7 MB in the beginning and 189.3 MB in the end (delta: -131.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 337.86 ms. Allocated memory is still 257.9 MB. Free memory was 189.3 MB in the beginning and 141.6 MB in the end (delta: 47.7 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 647]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 365 locations, 52 error locations. Started 1 CEGAR loops. OverallTime: 8635.1ms, OverallIterations: 42, TraceHistogramMax: 1, EmptinessCheckTime: 51.2ms, AutomataDifference: 5000.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12138 SDtfs, 10247 SDslu, 13749 SDs, 0 SdLazy, 3891 SolverSat, 574 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2891.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 829.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=732occurred in iteration=8, InterpolantAutomatonStates: 189, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 672.3ms AutomataMinimizationTime, 42 MinimizatonAttempts, 2528 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 111.7ms SsaConstructionTime, 613.5ms SatisfiabilityAnalysisTime, 1677.7ms InterpolantComputationTime, 1095 NumberOfCodeBlocks, 1095 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 1053 ConstructedInterpolants, 0 QuantifiedInterpolants, 3015 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 42 InterpolantComputations, 42 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 52 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-16 03:15:08,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8d56ef-c638-41ed-8c52-f42248f8a85f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...