./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH --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 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:06:51,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:06:51,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:06:51,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:06:51,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:06:51,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:06:51,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:06:51,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:06:51,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:06:51,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:06:51,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:06:51,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:06:51,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:06:51,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:06:51,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:06:51,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:06:51,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:06:51,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:06:51,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:06:51,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:06:51,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:06:51,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:06:51,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:06:51,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:06:51,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:06:51,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:06:51,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:06:51,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:06:51,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:06:51,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:06:51,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:06:51,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:06:51,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:06:51,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:06:51,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:06:51,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:06:51,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:06:51,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:06:51,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:06:51,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:06:51,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:06:51,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-03 04:06:51,736 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:06:51,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:06:51,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:06:51,740 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:06:51,741 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:06:51,741 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:06:51,741 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:06:51,741 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:06:51,742 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:06:51,742 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:06:51,743 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:06:51,743 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:06:51,744 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:06:51,744 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:06:51,744 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:06:51,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 04:06:51,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 04:06:51,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:06:51,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:06:51,746 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:06:51,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:06:51,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:06:51,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:06:51,747 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 04:06:51,747 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 04:06:51,748 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 04:06:51,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:06:51,750 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:06:51,750 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:06:51,750 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:06:51,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:06:51,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:06:51,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:51,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:06:51,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:06:51,752 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:06:51,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:06:51,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:06:51,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:06:51,753 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_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c [2021-11-03 04:06:52,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:06:52,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:06:52,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:06:52,063 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:06:52,064 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:06:52,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2021-11-03 04:06:52,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/data/7cb293180/eaa2c1eb20404438a78c056f25c67e69/FLAGf39017a42 [2021-11-03 04:06:52,731 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:06:52,731 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2021-11-03 04:06:52,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/data/7cb293180/eaa2c1eb20404438a78c056f25c67e69/FLAGf39017a42 [2021-11-03 04:06:53,041 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/data/7cb293180/eaa2c1eb20404438a78c056f25c67e69 [2021-11-03 04:06:53,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:06:53,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:06:53,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:53,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:06:53,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:06:53,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc92ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53, skipping insertion in model container [2021-11-03 04:06:53,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:06:53,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:53,350 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_d2ec1530-7797-4193-adf2-8ad7f57a101a/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2021-11-03 04:06:53,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:53,512 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:06:53,527 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_d2ec1530-7797-4193-adf2-8ad7f57a101a/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2021-11-03 04:06:53,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:53,632 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:06:53,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53 WrapperNode [2021-11-03 04:06:53,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:53,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:06:53,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:06:53,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:06:53,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:06:53,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:06:53,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:06:53,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:06:53,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:06:53,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:06:53,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:06:53,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:06:53,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:53,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:06:53,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:06:53,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:06:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:06:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 04:06:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:06:53,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:06:54,223 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,242 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,259 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,278 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,312 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,315 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,319 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,322 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,323 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,327 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,330 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,351 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,354 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,356 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,357 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,360 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,362 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,367 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,369 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,374 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,379 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:54,383 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:06:55,675 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##674: assume !false; [2021-11-03 04:06:55,675 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##673: assume false; [2021-11-03 04:06:55,675 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##618: assume !false; [2021-11-03 04:06:55,675 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##617: assume false; [2021-11-03 04:06:55,675 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##296: assume !false; [2021-11-03 04:06:55,676 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##295: assume false; [2021-11-03 04:06:55,676 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !false; [2021-11-03 04:06:55,676 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##255: assume false; [2021-11-03 04:06:55,676 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##217: assume !false; [2021-11-03 04:06:55,676 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##216: assume false; [2021-11-03 04:06:55,677 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##247: assume !false; [2021-11-03 04:06:55,677 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume false; [2021-11-03 04:06:55,677 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##724: assume !false; [2021-11-03 04:06:55,677 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##723: assume false; [2021-11-03 04:06:55,677 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2021-11-03 04:06:55,677 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2021-11-03 04:06:55,678 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##326: assume !false; [2021-11-03 04:06:55,678 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##325: assume false; [2021-11-03 04:06:55,678 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##335: assume !false; [2021-11-03 04:06:55,678 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##334: assume false; [2021-11-03 04:06:55,679 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##405: assume !false; [2021-11-03 04:06:55,679 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume false; [2021-11-03 04:06:55,679 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##412: assume false; [2021-11-03 04:06:55,679 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##413: assume !false; [2021-11-03 04:06:55,680 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##452: assume false; [2021-11-03 04:06:55,680 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##453: assume !false; [2021-11-03 04:06:55,680 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##483: assume !false; [2021-11-03 04:06:55,681 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##482: assume false; [2021-11-03 04:06:55,682 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##543: assume !false; [2021-11-03 04:06:55,682 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##542: assume false; [2021-11-03 04:06:55,682 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##98: assume !false; [2021-11-03 04:06:55,682 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume false; [2021-11-03 04:06:55,682 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##80: assume !false; [2021-11-03 04:06:55,682 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume !false; [2021-11-03 04:06:55,683 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume false; [2021-11-03 04:06:55,683 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2021-11-03 04:06:55,683 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2021-11-03 04:06:55,683 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume false; [2021-11-03 04:06:55,683 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##142: assume !false; [2021-11-03 04:06:55,683 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume false; [2021-11-03 04:06:55,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-03 04:06:55,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-03 04:06:55,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##573: assume !false; [2021-11-03 04:06:55,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##572: assume false; [2021-11-03 04:06:56,894 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:06:56,894 INFO L299 CfgBuilder]: Removed 267 assume(true) statements. [2021-11-03 04:06:56,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:56 BoogieIcfgContainer [2021-11-03 04:06:56,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:06:56,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:06:56,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:06:56,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:06:56,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:06:53" (1/3) ... [2021-11-03 04:06:56,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229e2d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:56, skipping insertion in model container [2021-11-03 04:06:56,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (2/3) ... [2021-11-03 04:06:56,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229e2d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:56, skipping insertion in model container [2021-11-03 04:06:56,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:56" (3/3) ... [2021-11-03 04:06:56,910 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf_simpl1.cil.c [2021-11-03 04:06:56,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:06:56,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2021-11-03 04:06:56,976 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:06:56,982 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:06:56,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2021-11-03 04:06:57,011 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) [2021-11-03 04:06:57,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 04:06:57,018 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:57,019 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 04:06:57,019 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)] === [2021-11-03 04:06:57,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:57,025 INFO L85 PathProgramCache]: Analyzing trace with hash 67190960, now seen corresponding path program 1 times [2021-11-03 04:06:57,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:57,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691479654] [2021-11-03 04:06:57,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:57,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:57,222 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:57,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691479654] [2021-11-03 04:06:57,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691479654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:57,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:57,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:57,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785232583] [2021-11-03 04:06:57,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:57,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:57,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:57,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:57,253 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) [2021-11-03 04:06:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:57,348 INFO L93 Difference]: Finished difference Result 390 states and 526 transitions. [2021-11-03 04:06:57,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:57,350 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 [2021-11-03 04:06:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:57,366 INFO L225 Difference]: With dead ends: 390 [2021-11-03 04:06:57,367 INFO L226 Difference]: Without dead ends: 388 [2021-11-03 04:06:57,368 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:57,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-11-03 04:06:57,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 371. [2021-11-03 04:06:57,426 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) [2021-11-03 04:06:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 503 transitions. [2021-11-03 04:06:57,433 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 503 transitions. Word has length 4 [2021-11-03 04:06:57,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:57,434 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 503 transitions. [2021-11-03 04:06:57,434 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) [2021-11-03 04:06:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 503 transitions. [2021-11-03 04:06:57,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:06:57,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:57,435 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:06:57,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:06:57,436 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)] === [2021-11-03 04:06:57,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash -88952287, now seen corresponding path program 1 times [2021-11-03 04:06:57,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:57,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378954816] [2021-11-03 04:06:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:57,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:57,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:57,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:57,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378954816] [2021-11-03 04:06:57,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378954816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:57,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:57,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:06:57,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590407688] [2021-11-03 04:06:57,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:57,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:57,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:57,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:57,486 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) [2021-11-03 04:06:57,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:57,567 INFO L93 Difference]: Finished difference Result 614 states and 827 transitions. [2021-11-03 04:06:57,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:57,568 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 [2021-11-03 04:06:57,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:57,572 INFO L225 Difference]: With dead ends: 614 [2021-11-03 04:06:57,572 INFO L226 Difference]: Without dead ends: 614 [2021-11-03 04:06:57,573 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:57,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-11-03 04:06:57,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 546. [2021-11-03 04:06:57,597 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) [2021-11-03 04:06:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 788 transitions. [2021-11-03 04:06:57,600 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 788 transitions. Word has length 6 [2021-11-03 04:06:57,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:57,600 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 788 transitions. [2021-11-03 04:06:57,601 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) [2021-11-03 04:06:57,601 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 788 transitions. [2021-11-03 04:06:57,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:06:57,602 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:57,602 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:06:57,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:06:57,602 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)] === [2021-11-03 04:06:57,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:57,603 INFO L85 PathProgramCache]: Analyzing trace with hash 146071095, now seen corresponding path program 1 times [2021-11-03 04:06:57,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:57,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387484812] [2021-11-03 04:06:57,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:57,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:57,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:57,647 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:57,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387484812] [2021-11-03 04:06:57,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387484812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:57,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:57,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:57,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776825005] [2021-11-03 04:06:57,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:57,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:57,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:57,650 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) [2021-11-03 04:06:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:57,817 INFO L93 Difference]: Finished difference Result 697 states and 996 transitions. [2021-11-03 04:06:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:57,818 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 [2021-11-03 04:06:57,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:57,822 INFO L225 Difference]: With dead ends: 697 [2021-11-03 04:06:57,823 INFO L226 Difference]: Without dead ends: 697 [2021-11-03 04:06:57,823 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:57,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2021-11-03 04:06:57,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 686. [2021-11-03 04:06:57,840 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) [2021-11-03 04:06:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 990 transitions. [2021-11-03 04:06:57,843 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 990 transitions. Word has length 6 [2021-11-03 04:06:57,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:57,843 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 990 transitions. [2021-11-03 04:06:57,844 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) [2021-11-03 04:06:57,844 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 990 transitions. [2021-11-03 04:06:57,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 04:06:57,845 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:57,845 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:57,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:06:57,845 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)] === [2021-11-03 04:06:57,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:57,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1545341148, now seen corresponding path program 1 times [2021-11-03 04:06:57,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:57,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387794443] [2021-11-03 04:06:57,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:57,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:57,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:57,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:57,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387794443] [2021-11-03 04:06:57,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387794443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:57,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:57,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:06:57,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256836598] [2021-11-03 04:06:57,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:57,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:57,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:57,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:57,883 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) [2021-11-03 04:06:57,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:57,891 INFO L93 Difference]: Finished difference Result 685 states and 989 transitions. [2021-11-03 04:06:57,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:57,891 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 [2021-11-03 04:06:57,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:57,895 INFO L225 Difference]: With dead ends: 685 [2021-11-03 04:06:57,895 INFO L226 Difference]: Without dead ends: 683 [2021-11-03 04:06:57,896 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:57,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2021-11-03 04:06:57,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 678. [2021-11-03 04:06:57,909 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) [2021-11-03 04:06:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 972 transitions. [2021-11-03 04:06:57,912 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 972 transitions. Word has length 7 [2021-11-03 04:06:57,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:57,913 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 972 transitions. [2021-11-03 04:06:57,913 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) [2021-11-03 04:06:57,913 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 972 transitions. [2021-11-03 04:06:57,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 04:06:57,914 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:57,915 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:57,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 04:06:57,915 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)] === [2021-11-03 04:06:57,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:57,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1730910960, now seen corresponding path program 1 times [2021-11-03 04:06:57,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:57,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410946992] [2021-11-03 04:06:57,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:57,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:57,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:57,952 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:57,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410946992] [2021-11-03 04:06:57,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410946992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:57,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:57,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:06:57,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807530230] [2021-11-03 04:06:57,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:57,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:57,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:57,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:57,955 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) [2021-11-03 04:06:58,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:58,116 INFO L93 Difference]: Finished difference Result 681 states and 974 transitions. [2021-11-03 04:06:58,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:58,117 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 [2021-11-03 04:06:58,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:58,121 INFO L225 Difference]: With dead ends: 681 [2021-11-03 04:06:58,121 INFO L226 Difference]: Without dead ends: 678 [2021-11-03 04:06:58,121 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:58,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2021-11-03 04:06:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 678. [2021-11-03 04:06:58,133 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) [2021-11-03 04:06:58,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 971 transitions. [2021-11-03 04:06:58,136 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 971 transitions. Word has length 10 [2021-11-03 04:06:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:58,137 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 971 transitions. [2021-11-03 04:06:58,137 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) [2021-11-03 04:06:58,137 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 971 transitions. [2021-11-03 04:06:58,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 04:06:58,138 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:58,138 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:58,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 04:06:58,139 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)] === [2021-11-03 04:06:58,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:58,139 INFO L85 PathProgramCache]: Analyzing trace with hash -154167574, now seen corresponding path program 1 times [2021-11-03 04:06:58,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:58,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567658732] [2021-11-03 04:06:58,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:58,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:58,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:58,192 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:58,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567658732] [2021-11-03 04:06:58,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567658732] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:58,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:58,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:58,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106716575] [2021-11-03 04:06:58,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:58,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:58,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:58,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:58,195 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) [2021-11-03 04:06:58,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:58,233 INFO L93 Difference]: Finished difference Result 853 states and 1216 transitions. [2021-11-03 04:06:58,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:58,234 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 [2021-11-03 04:06:58,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:58,239 INFO L225 Difference]: With dead ends: 853 [2021-11-03 04:06:58,239 INFO L226 Difference]: Without dead ends: 853 [2021-11-03 04:06:58,239 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:58,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2021-11-03 04:06:58,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 724. [2021-11-03 04:06:58,254 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) [2021-11-03 04:06:58,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1061 transitions. [2021-11-03 04:06:58,257 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1061 transitions. Word has length 10 [2021-11-03 04:06:58,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:58,258 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 1061 transitions. [2021-11-03 04:06:58,258 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) [2021-11-03 04:06:58,258 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1061 transitions. [2021-11-03 04:06:58,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 04:06:58,259 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:58,260 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:58,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 04:06:58,260 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)] === [2021-11-03 04:06:58,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:58,261 INFO L85 PathProgramCache]: Analyzing trace with hash 394022861, now seen corresponding path program 1 times [2021-11-03 04:06:58,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:58,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253005828] [2021-11-03 04:06:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:58,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:58,313 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:58,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253005828] [2021-11-03 04:06:58,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253005828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:58,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:58,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:58,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330402697] [2021-11-03 04:06:58,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:58,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:58,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:58,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:58,315 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) [2021-11-03 04:06:58,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:58,464 INFO L93 Difference]: Finished difference Result 720 states and 1057 transitions. [2021-11-03 04:06:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:58,465 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 [2021-11-03 04:06:58,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:58,469 INFO L225 Difference]: With dead ends: 720 [2021-11-03 04:06:58,470 INFO L226 Difference]: Without dead ends: 720 [2021-11-03 04:06:58,470 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:58,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2021-11-03 04:06:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2021-11-03 04:06:58,483 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) [2021-11-03 04:06:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1057 transitions. [2021-11-03 04:06:58,486 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1057 transitions. Word has length 15 [2021-11-03 04:06:58,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:58,487 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1057 transitions. [2021-11-03 04:06:58,487 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) [2021-11-03 04:06:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1057 transitions. [2021-11-03 04:06:58,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 04:06:58,488 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:58,489 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:58,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 04:06:58,489 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)] === [2021-11-03 04:06:58,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:58,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1722274858, now seen corresponding path program 1 times [2021-11-03 04:06:58,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:58,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498878919] [2021-11-03 04:06:58,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:58,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:58,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:58,527 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:58,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498878919] [2021-11-03 04:06:58,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498878919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:58,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:58,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:58,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407132561] [2021-11-03 04:06:58,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:58,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:58,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:58,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:58,529 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) [2021-11-03 04:06:58,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:58,663 INFO L93 Difference]: Finished difference Result 732 states and 1070 transitions. [2021-11-03 04:06:58,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:58,664 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 [2021-11-03 04:06:58,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:58,669 INFO L225 Difference]: With dead ends: 732 [2021-11-03 04:06:58,669 INFO L226 Difference]: Without dead ends: 732 [2021-11-03 04:06:58,670 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-11-03 04:06:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2021-11-03 04:06:58,683 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) [2021-11-03 04:06:58,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2021-11-03 04:06:58,687 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 15 [2021-11-03 04:06:58,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:58,687 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2021-11-03 04:06:58,688 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) [2021-11-03 04:06:58,688 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2021-11-03 04:06:58,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:06:58,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:58,691 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:58,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-03 04:06:58,691 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)] === [2021-11-03 04:06:58,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:58,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1833333272, now seen corresponding path program 1 times [2021-11-03 04:06:58,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:58,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220026510] [2021-11-03 04:06:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:58,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:58,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:58,805 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:58,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220026510] [2021-11-03 04:06:58,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220026510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:58,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:58,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:58,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446369234] [2021-11-03 04:06:58,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:06:58,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:58,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:06:58,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:06:58,808 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) [2021-11-03 04:06:58,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:58,950 INFO L93 Difference]: Finished difference Result 732 states and 1068 transitions. [2021-11-03 04:06:58,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:06:58,952 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 [2021-11-03 04:06:58,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:58,956 INFO L225 Difference]: With dead ends: 732 [2021-11-03 04:06:58,956 INFO L226 Difference]: Without dead ends: 732 [2021-11-03 04:06:58,957 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:06:58,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-11-03 04:06:58,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2021-11-03 04:06:58,971 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) [2021-11-03 04:06:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1068 transitions. [2021-11-03 04:06:58,974 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1068 transitions. Word has length 16 [2021-11-03 04:06:58,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:58,975 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1068 transitions. [2021-11-03 04:06:58,975 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) [2021-11-03 04:06:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1068 transitions. [2021-11-03 04:06:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 04:06:58,976 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:58,976 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:58,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-03 04:06:58,977 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)] === [2021-11-03 04:06:58,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:58,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1531718427, now seen corresponding path program 1 times [2021-11-03 04:06:58,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:58,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061720509] [2021-11-03 04:06:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:58,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:59,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:59,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061720509] [2021-11-03 04:06:59,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061720509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:59,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:59,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:59,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100144043] [2021-11-03 04:06:59,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:06:59,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:59,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:06:59,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:06:59,033 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) [2021-11-03 04:06:59,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:59,176 INFO L93 Difference]: Finished difference Result 732 states and 1066 transitions. [2021-11-03 04:06:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:06:59,176 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 [2021-11-03 04:06:59,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:59,181 INFO L225 Difference]: With dead ends: 732 [2021-11-03 04:06:59,181 INFO L226 Difference]: Without dead ends: 732 [2021-11-03 04:06:59,182 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:06:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-11-03 04:06:59,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2021-11-03 04:06:59,195 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) [2021-11-03 04:06:59,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1066 transitions. [2021-11-03 04:06:59,197 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1066 transitions. Word has length 17 [2021-11-03 04:06:59,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:59,198 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1066 transitions. [2021-11-03 04:06:59,198 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) [2021-11-03 04:06:59,198 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1066 transitions. [2021-11-03 04:06:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 04:06:59,199 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:59,199 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:59,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-03 04:06:59,200 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)] === [2021-11-03 04:06:59,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:59,201 INFO L85 PathProgramCache]: Analyzing trace with hash -602588481, now seen corresponding path program 1 times [2021-11-03 04:06:59,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:59,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487593780] [2021-11-03 04:06:59,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:59,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:59,269 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:59,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487593780] [2021-11-03 04:06:59,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487593780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:59,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:59,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:59,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530038803] [2021-11-03 04:06:59,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:59,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:59,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:59,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:59,273 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) [2021-11-03 04:06:59,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:59,293 INFO L93 Difference]: Finished difference Result 743 states and 1076 transitions. [2021-11-03 04:06:59,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:59,294 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 [2021-11-03 04:06:59,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:59,298 INFO L225 Difference]: With dead ends: 743 [2021-11-03 04:06:59,299 INFO L226 Difference]: Without dead ends: 730 [2021-11-03 04:06:59,299 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2021-11-03 04:06:59,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2021-11-03 04:06:59,330 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) [2021-11-03 04:06:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1063 transitions. [2021-11-03 04:06:59,333 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1063 transitions. Word has length 18 [2021-11-03 04:06:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:59,334 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 1063 transitions. [2021-11-03 04:06:59,334 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) [2021-11-03 04:06:59,334 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1063 transitions. [2021-11-03 04:06:59,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-03 04:06:59,335 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:59,335 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:59,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-03 04:06:59,335 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)] === [2021-11-03 04:06:59,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:59,336 INFO L85 PathProgramCache]: Analyzing trace with hash -383913352, now seen corresponding path program 1 times [2021-11-03 04:06:59,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:59,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940437309] [2021-11-03 04:06:59,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:59,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:59,365 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:59,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940437309] [2021-11-03 04:06:59,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940437309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:59,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:59,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:59,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667718694] [2021-11-03 04:06:59,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:59,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:59,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:59,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:59,367 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) [2021-11-03 04:06:59,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:59,389 INFO L93 Difference]: Finished difference Result 595 states and 822 transitions. [2021-11-03 04:06:59,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:59,390 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 [2021-11-03 04:06:59,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:59,393 INFO L225 Difference]: With dead ends: 595 [2021-11-03 04:06:59,394 INFO L226 Difference]: Without dead ends: 595 [2021-11-03 04:06:59,394 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:59,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2021-11-03 04:06:59,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 582. [2021-11-03 04:06:59,405 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) [2021-11-03 04:06:59,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 810 transitions. [2021-11-03 04:06:59,407 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 810 transitions. Word has length 19 [2021-11-03 04:06:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:59,409 INFO L470 AbstractCegarLoop]: Abstraction has 582 states and 810 transitions. [2021-11-03 04:06:59,409 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) [2021-11-03 04:06:59,410 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 810 transitions. [2021-11-03 04:06:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 04:06:59,410 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:59,411 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:59,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-03 04:06:59,411 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)] === [2021-11-03 04:06:59,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:59,412 INFO L85 PathProgramCache]: Analyzing trace with hash -950565082, now seen corresponding path program 1 times [2021-11-03 04:06:59,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:59,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581417128] [2021-11-03 04:06:59,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:59,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:59,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:59,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:59,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581417128] [2021-11-03 04:06:59,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581417128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:59,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:59,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:59,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814732993] [2021-11-03 04:06:59,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:59,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:59,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:59,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:59,468 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) [2021-11-03 04:06:59,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:59,630 INFO L93 Difference]: Finished difference Result 874 states and 1236 transitions. [2021-11-03 04:06:59,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:59,631 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 [2021-11-03 04:06:59,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:59,636 INFO L225 Difference]: With dead ends: 874 [2021-11-03 04:06:59,636 INFO L226 Difference]: Without dead ends: 874 [2021-11-03 04:06:59,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:59,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2021-11-03 04:06:59,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 592. [2021-11-03 04:06:59,651 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) [2021-11-03 04:06:59,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 821 transitions. [2021-11-03 04:06:59,654 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 821 transitions. Word has length 20 [2021-11-03 04:06:59,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:59,654 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 821 transitions. [2021-11-03 04:06:59,655 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) [2021-11-03 04:06:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 821 transitions. [2021-11-03 04:06:59,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 04:06:59,656 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:59,656 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:59,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-03 04:06:59,656 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)] === [2021-11-03 04:06:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:59,657 INFO L85 PathProgramCache]: Analyzing trace with hash 54236982, now seen corresponding path program 1 times [2021-11-03 04:06:59,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:59,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759758979] [2021-11-03 04:06:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:59,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:59,714 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:59,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759758979] [2021-11-03 04:06:59,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759758979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:59,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:59,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:59,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361663532] [2021-11-03 04:06:59,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:59,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:59,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:59,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:59,717 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) [2021-11-03 04:06:59,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:59,837 INFO L93 Difference]: Finished difference Result 608 states and 839 transitions. [2021-11-03 04:06:59,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:59,837 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 [2021-11-03 04:06:59,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:59,841 INFO L225 Difference]: With dead ends: 608 [2021-11-03 04:06:59,841 INFO L226 Difference]: Without dead ends: 608 [2021-11-03 04:06:59,842 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:59,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2021-11-03 04:06:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2021-11-03 04:06:59,853 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) [2021-11-03 04:06:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 839 transitions. [2021-11-03 04:06:59,855 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 839 transitions. Word has length 20 [2021-11-03 04:06:59,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:59,855 INFO L470 AbstractCegarLoop]: Abstraction has 608 states and 839 transitions. [2021-11-03 04:06:59,856 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) [2021-11-03 04:06:59,856 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 839 transitions. [2021-11-03 04:06:59,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-03 04:06:59,857 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:59,857 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:59,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-03 04:06:59,857 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)] === [2021-11-03 04:06:59,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:59,858 INFO L85 PathProgramCache]: Analyzing trace with hash 614845220, now seen corresponding path program 1 times [2021-11-03 04:06:59,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:06:59,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557452437] [2021-11-03 04:06:59,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:59,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:06:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:59,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:06:59,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557452437] [2021-11-03 04:06:59,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557452437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:59,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:59,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:06:59,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533311876] [2021-11-03 04:06:59,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:06:59,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:06:59,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:06:59,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:06:59,900 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) [2021-11-03 04:07:00,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:00,124 INFO L93 Difference]: Finished difference Result 890 states and 1253 transitions. [2021-11-03 04:07:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:00,124 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 [2021-11-03 04:07:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:00,134 INFO L225 Difference]: With dead ends: 890 [2021-11-03 04:07:00,134 INFO L226 Difference]: Without dead ends: 890 [2021-11-03 04:07:00,135 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2021-11-03 04:07:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 608. [2021-11-03 04:07:00,152 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) [2021-11-03 04:07:00,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 838 transitions. [2021-11-03 04:07:00,155 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 838 transitions. Word has length 21 [2021-11-03 04:07:00,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:00,155 INFO L470 AbstractCegarLoop]: Abstraction has 608 states and 838 transitions. [2021-11-03 04:07:00,156 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) [2021-11-03 04:07:00,156 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 838 transitions. [2021-11-03 04:07:00,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 04:07:00,157 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:00,157 INFO L513 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] [2021-11-03 04:07:00,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-03 04:07:00,157 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)] === [2021-11-03 04:07:00,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:00,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1347013313, now seen corresponding path program 1 times [2021-11-03 04:07:00,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:00,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602497560] [2021-11-03 04:07:00,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:00,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:00,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:00,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602497560] [2021-11-03 04:07:00,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602497560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:00,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:00,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:00,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631335876] [2021-11-03 04:07:00,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:00,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:00,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:00,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:00,278 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) [2021-11-03 04:07:00,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:00,454 INFO L93 Difference]: Finished difference Result 669 states and 898 transitions. [2021-11-03 04:07:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:07:00,455 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 [2021-11-03 04:07:00,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:00,459 INFO L225 Difference]: With dead ends: 669 [2021-11-03 04:07:00,460 INFO L226 Difference]: Without dead ends: 667 [2021-11-03 04:07:00,460 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:07:00,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-11-03 04:07:00,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 615. [2021-11-03 04:07:00,476 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) [2021-11-03 04:07:00,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 845 transitions. [2021-11-03 04:07:00,480 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 845 transitions. Word has length 22 [2021-11-03 04:07:00,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:00,480 INFO L470 AbstractCegarLoop]: Abstraction has 615 states and 845 transitions. [2021-11-03 04:07:00,480 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) [2021-11-03 04:07:00,481 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 845 transitions. [2021-11-03 04:07:00,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 04:07:00,482 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:00,482 INFO L513 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] [2021-11-03 04:07:00,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-03 04:07:00,483 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)] === [2021-11-03 04:07:00,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:00,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1347001397, now seen corresponding path program 1 times [2021-11-03 04:07:00,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:00,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599517737] [2021-11-03 04:07:00,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:00,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:00,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:00,543 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:00,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599517737] [2021-11-03 04:07:00,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599517737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:00,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:00,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:07:00,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089797981] [2021-11-03 04:07:00,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:00,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:00,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:00,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:00,546 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) [2021-11-03 04:07:00,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:00,793 INFO L93 Difference]: Finished difference Result 893 states and 1256 transitions. [2021-11-03 04:07:00,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:00,794 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 [2021-11-03 04:07:00,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:00,800 INFO L225 Difference]: With dead ends: 893 [2021-11-03 04:07:00,800 INFO L226 Difference]: Without dead ends: 874 [2021-11-03 04:07:00,801 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2021-11-03 04:07:00,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 600. [2021-11-03 04:07:00,825 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) [2021-11-03 04:07:00,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 828 transitions. [2021-11-03 04:07:00,828 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 828 transitions. Word has length 22 [2021-11-03 04:07:00,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:00,829 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 828 transitions. [2021-11-03 04:07:00,829 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) [2021-11-03 04:07:00,829 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 828 transitions. [2021-11-03 04:07:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 04:07:00,833 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:00,833 INFO L513 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] [2021-11-03 04:07:00,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-03 04:07:00,833 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)] === [2021-11-03 04:07:00,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:00,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1544802929, now seen corresponding path program 1 times [2021-11-03 04:07:00,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:00,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45585932] [2021-11-03 04:07:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:00,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:00,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:00,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:00,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45585932] [2021-11-03 04:07:00,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45585932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:00,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:00,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:07:00,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13486488] [2021-11-03 04:07:00,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:07:00,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:00,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:07:00,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:07:00,902 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) [2021-11-03 04:07:01,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:01,084 INFO L93 Difference]: Finished difference Result 815 states and 1134 transitions. [2021-11-03 04:07:01,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:07:01,085 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 [2021-11-03 04:07:01,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:01,090 INFO L225 Difference]: With dead ends: 815 [2021-11-03 04:07:01,090 INFO L226 Difference]: Without dead ends: 815 [2021-11-03 04:07:01,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:07:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2021-11-03 04:07:01,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 624. [2021-11-03 04:07:01,105 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) [2021-11-03 04:07:01,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 864 transitions. [2021-11-03 04:07:01,108 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 864 transitions. Word has length 22 [2021-11-03 04:07:01,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:01,108 INFO L470 AbstractCegarLoop]: Abstraction has 624 states and 864 transitions. [2021-11-03 04:07:01,108 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) [2021-11-03 04:07:01,108 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 864 transitions. [2021-11-03 04:07:01,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 04:07:01,109 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:01,109 INFO L513 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] [2021-11-03 04:07:01,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-03 04:07:01,109 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)] === [2021-11-03 04:07:01,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:01,110 INFO L85 PathProgramCache]: Analyzing trace with hash 707895288, now seen corresponding path program 1 times [2021-11-03 04:07:01,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:01,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876079285] [2021-11-03 04:07:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:01,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:01,269 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:01,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876079285] [2021-11-03 04:07:01,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876079285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:01,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:01,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:07:01,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572899155] [2021-11-03 04:07:01,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:01,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:01,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:01,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:01,271 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) [2021-11-03 04:07:01,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:01,375 INFO L93 Difference]: Finished difference Result 934 states and 1286 transitions. [2021-11-03 04:07:01,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:01,375 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 [2021-11-03 04:07:01,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:01,380 INFO L225 Difference]: With dead ends: 934 [2021-11-03 04:07:01,380 INFO L226 Difference]: Without dead ends: 934 [2021-11-03 04:07:01,381 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:01,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2021-11-03 04:07:01,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 660. [2021-11-03 04:07:01,395 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) [2021-11-03 04:07:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 900 transitions. [2021-11-03 04:07:01,398 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 900 transitions. Word has length 22 [2021-11-03 04:07:01,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:01,398 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 900 transitions. [2021-11-03 04:07:01,398 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) [2021-11-03 04:07:01,398 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 900 transitions. [2021-11-03 04:07:01,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-03 04:07:01,399 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:01,399 INFO L513 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] [2021-11-03 04:07:01,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-03 04:07:01,399 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)] === [2021-11-03 04:07:01,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1855206658, now seen corresponding path program 1 times [2021-11-03 04:07:01,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:01,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342448885] [2021-11-03 04:07:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:01,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:01,435 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:01,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342448885] [2021-11-03 04:07:01,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342448885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:01,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:01,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:01,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993518349] [2021-11-03 04:07:01,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:01,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:01,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:01,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:01,437 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) [2021-11-03 04:07:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:01,483 INFO L93 Difference]: Finished difference Result 687 states and 925 transitions. [2021-11-03 04:07:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:07:01,483 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 [2021-11-03 04:07:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:01,487 INFO L225 Difference]: With dead ends: 687 [2021-11-03 04:07:01,487 INFO L226 Difference]: Without dead ends: 658 [2021-11-03 04:07:01,488 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:07:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-11-03 04:07:01,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2021-11-03 04:07:01,500 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) [2021-11-03 04:07:01,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 896 transitions. [2021-11-03 04:07:01,502 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 896 transitions. Word has length 23 [2021-11-03 04:07:01,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:01,502 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 896 transitions. [2021-11-03 04:07:01,502 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) [2021-11-03 04:07:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 896 transitions. [2021-11-03 04:07:01,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-03 04:07:01,503 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:01,503 INFO L513 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] [2021-11-03 04:07:01,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-03 04:07:01,504 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)] === [2021-11-03 04:07:01,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:01,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1705702936, now seen corresponding path program 1 times [2021-11-03 04:07:01,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:01,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560626843] [2021-11-03 04:07:01,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:01,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:01,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:01,535 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:01,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560626843] [2021-11-03 04:07:01,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560626843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:01,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:01,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:07:01,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991482670] [2021-11-03 04:07:01,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:01,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:01,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:01,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:01,537 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) [2021-11-03 04:07:01,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:01,686 INFO L93 Difference]: Finished difference Result 658 states and 894 transitions. [2021-11-03 04:07:01,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:01,687 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 [2021-11-03 04:07:01,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:01,691 INFO L225 Difference]: With dead ends: 658 [2021-11-03 04:07:01,691 INFO L226 Difference]: Without dead ends: 658 [2021-11-03 04:07:01,691 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:01,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-11-03 04:07:01,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2021-11-03 04:07:01,704 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) [2021-11-03 04:07:01,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 894 transitions. [2021-11-03 04:07:01,706 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 894 transitions. Word has length 23 [2021-11-03 04:07:01,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:01,707 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 894 transitions. [2021-11-03 04:07:01,707 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) [2021-11-03 04:07:01,707 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 894 transitions. [2021-11-03 04:07:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-03 04:07:01,708 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:01,708 INFO L513 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] [2021-11-03 04:07:01,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-03 04:07:01,708 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)] === [2021-11-03 04:07:01,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:01,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2054493699, now seen corresponding path program 1 times [2021-11-03 04:07:01,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:01,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998255679] [2021-11-03 04:07:01,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:01,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:01,768 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:01,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998255679] [2021-11-03 04:07:01,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998255679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:01,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:01,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:07:01,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817074735] [2021-11-03 04:07:01,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:01,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:01,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:01,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:01,771 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) [2021-11-03 04:07:01,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:01,913 INFO L93 Difference]: Finished difference Result 673 states and 897 transitions. [2021-11-03 04:07:01,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:01,919 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 [2021-11-03 04:07:01,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:01,923 INFO L225 Difference]: With dead ends: 673 [2021-11-03 04:07:01,923 INFO L226 Difference]: Without dead ends: 673 [2021-11-03 04:07:01,923 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:01,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2021-11-03 04:07:01,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 658. [2021-11-03 04:07:01,936 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) [2021-11-03 04:07:01,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 882 transitions. [2021-11-03 04:07:01,939 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 882 transitions. Word has length 23 [2021-11-03 04:07:01,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:01,939 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 882 transitions. [2021-11-03 04:07:01,940 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) [2021-11-03 04:07:01,940 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 882 transitions. [2021-11-03 04:07:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:07:01,941 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:01,941 INFO L513 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] [2021-11-03 04:07:01,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-03 04:07:01,942 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)] === [2021-11-03 04:07:01,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:01,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1726712738, now seen corresponding path program 1 times [2021-11-03 04:07:01,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:01,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22644963] [2021-11-03 04:07:01,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:01,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:01,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:01,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22644963] [2021-11-03 04:07:01,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22644963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:01,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:01,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:07:01,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814949808] [2021-11-03 04:07:01,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:07:01,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:01,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:07:01,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:07:01,978 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) [2021-11-03 04:07:02,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:02,116 INFO L93 Difference]: Finished difference Result 886 states and 1213 transitions. [2021-11-03 04:07:02,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:07:02,116 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 [2021-11-03 04:07:02,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:02,121 INFO L225 Difference]: With dead ends: 886 [2021-11-03 04:07:02,122 INFO L226 Difference]: Without dead ends: 886 [2021-11-03 04:07:02,122 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:07:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-11-03 04:07:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 654. [2021-11-03 04:07:02,137 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) [2021-11-03 04:07:02,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 876 transitions. [2021-11-03 04:07:02,139 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 876 transitions. Word has length 24 [2021-11-03 04:07:02,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:02,140 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 876 transitions. [2021-11-03 04:07:02,140 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) [2021-11-03 04:07:02,140 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 876 transitions. [2021-11-03 04:07:02,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:07:02,141 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:02,141 INFO L513 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] [2021-11-03 04:07:02,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-03 04:07:02,141 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)] === [2021-11-03 04:07:02,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:02,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1478595672, now seen corresponding path program 1 times [2021-11-03 04:07:02,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:02,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136307333] [2021-11-03 04:07:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:02,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:02,188 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:02,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136307333] [2021-11-03 04:07:02,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136307333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:02,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:02,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:07:02,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252099211] [2021-11-03 04:07:02,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:02,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:02,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:02,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:02,192 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) [2021-11-03 04:07:02,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:02,334 INFO L93 Difference]: Finished difference Result 657 states and 877 transitions. [2021-11-03 04:07:02,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:02,334 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 [2021-11-03 04:07:02,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:02,338 INFO L225 Difference]: With dead ends: 657 [2021-11-03 04:07:02,338 INFO L226 Difference]: Without dead ends: 657 [2021-11-03 04:07:02,339 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:02,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-11-03 04:07:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 642. [2021-11-03 04:07:02,352 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) [2021-11-03 04:07:02,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 862 transitions. [2021-11-03 04:07:02,354 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 862 transitions. Word has length 24 [2021-11-03 04:07:02,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:02,355 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 862 transitions. [2021-11-03 04:07:02,355 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) [2021-11-03 04:07:02,355 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 862 transitions. [2021-11-03 04:07:02,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:07:02,356 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:02,356 INFO L513 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] [2021-11-03 04:07:02,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-03 04:07:02,357 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)] === [2021-11-03 04:07:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:02,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1622118277, now seen corresponding path program 1 times [2021-11-03 04:07:02,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:02,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12549102] [2021-11-03 04:07:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:02,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:02,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:02,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:02,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12549102] [2021-11-03 04:07:02,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12549102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:02,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:02,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:07:02,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869444344] [2021-11-03 04:07:02,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:07:02,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:02,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:07:02,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:07:02,401 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) [2021-11-03 04:07:02,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:02,440 INFO L93 Difference]: Finished difference Result 260 states and 316 transitions. [2021-11-03 04:07:02,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:07:02,440 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 [2021-11-03 04:07:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:02,442 INFO L225 Difference]: With dead ends: 260 [2021-11-03 04:07:02,442 INFO L226 Difference]: Without dead ends: 260 [2021-11-03 04:07:02,442 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:07:02,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-11-03 04:07:02,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2021-11-03 04:07:02,454 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) [2021-11-03 04:07:02,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 316 transitions. [2021-11-03 04:07:02,455 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 316 transitions. Word has length 24 [2021-11-03 04:07:02,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:02,456 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 316 transitions. [2021-11-03 04:07:02,456 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) [2021-11-03 04:07:02,456 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 316 transitions. [2021-11-03 04:07:02,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:07:02,457 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:02,457 INFO L513 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] [2021-11-03 04:07:02,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-03 04:07:02,457 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)] === [2021-11-03 04:07:02,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:02,458 INFO L85 PathProgramCache]: Analyzing trace with hash 502548810, now seen corresponding path program 1 times [2021-11-03 04:07:02,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:02,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249211380] [2021-11-03 04:07:02,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:02,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:02,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:02,529 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:02,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249211380] [2021-11-03 04:07:02,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249211380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:02,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:02,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:02,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297610519] [2021-11-03 04:07:02,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:02,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:02,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:02,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:02,531 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) [2021-11-03 04:07:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:02,720 INFO L93 Difference]: Finished difference Result 275 states and 332 transitions. [2021-11-03 04:07:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:07:02,721 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 [2021-11-03 04:07:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:02,723 INFO L225 Difference]: With dead ends: 275 [2021-11-03 04:07:02,723 INFO L226 Difference]: Without dead ends: 275 [2021-11-03 04:07:02,723 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:07:02,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-03 04:07:02,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 260. [2021-11-03 04:07:02,728 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) [2021-11-03 04:07:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 316 transitions. [2021-11-03 04:07:02,729 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 316 transitions. Word has length 24 [2021-11-03 04:07:02,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:02,729 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 316 transitions. [2021-11-03 04:07:02,729 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) [2021-11-03 04:07:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 316 transitions. [2021-11-03 04:07:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 04:07:02,730 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:02,730 INFO L513 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] [2021-11-03 04:07:02,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-03 04:07:02,730 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)] === [2021-11-03 04:07:02,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:02,731 INFO L85 PathProgramCache]: Analyzing trace with hash 2006079016, now seen corresponding path program 1 times [2021-11-03 04:07:02,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:02,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801955484] [2021-11-03 04:07:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:02,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:02,773 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:02,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801955484] [2021-11-03 04:07:02,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801955484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:02,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:02,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:07:02,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418805407] [2021-11-03 04:07:02,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:02,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:02,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:02,775 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) [2021-11-03 04:07:02,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:02,825 INFO L93 Difference]: Finished difference Result 272 states and 327 transitions. [2021-11-03 04:07:02,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:02,826 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 [2021-11-03 04:07:02,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:02,827 INFO L225 Difference]: With dead ends: 272 [2021-11-03 04:07:02,828 INFO L226 Difference]: Without dead ends: 271 [2021-11-03 04:07:02,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:02,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-11-03 04:07:02,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 266. [2021-11-03 04:07:02,833 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) [2021-11-03 04:07:02,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 322 transitions. [2021-11-03 04:07:02,834 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 322 transitions. Word has length 25 [2021-11-03 04:07:02,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:02,834 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 322 transitions. [2021-11-03 04:07:02,834 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) [2021-11-03 04:07:02,834 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 322 transitions. [2021-11-03 04:07:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 04:07:02,835 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:02,835 INFO L513 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] [2021-11-03 04:07:02,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-03 04:07:02,835 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)] === [2021-11-03 04:07:02,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:02,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2006067100, now seen corresponding path program 1 times [2021-11-03 04:07:02,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:02,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166037423] [2021-11-03 04:07:02,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:02,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:02,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:02,876 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:02,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166037423] [2021-11-03 04:07:02,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166037423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:02,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:02,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:07:02,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919227653] [2021-11-03 04:07:02,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:02,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:02,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:02,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:02,879 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) [2021-11-03 04:07:02,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:02,974 INFO L93 Difference]: Finished difference Result 268 states and 322 transitions. [2021-11-03 04:07:02,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:02,974 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 [2021-11-03 04:07:02,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:02,976 INFO L225 Difference]: With dead ends: 268 [2021-11-03 04:07:02,976 INFO L226 Difference]: Without dead ends: 251 [2021-11-03 04:07:02,976 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:02,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-03 04:07:02,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2021-11-03 04:07:02,981 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) [2021-11-03 04:07:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 305 transitions. [2021-11-03 04:07:02,982 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 305 transitions. Word has length 25 [2021-11-03 04:07:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:02,982 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 305 transitions. [2021-11-03 04:07:02,982 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) [2021-11-03 04:07:02,983 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 305 transitions. [2021-11-03 04:07:02,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 04:07:02,983 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:02,983 INFO L513 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] [2021-11-03 04:07:02,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-03 04:07:02,984 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)] === [2021-11-03 04:07:02,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:02,984 INFO L85 PathProgramCache]: Analyzing trace with hash -494569094, now seen corresponding path program 1 times [2021-11-03 04:07:02,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:02,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346078966] [2021-11-03 04:07:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:02,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:03,011 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:03,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346078966] [2021-11-03 04:07:03,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346078966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:03,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:03,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:07:03,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491549867] [2021-11-03 04:07:03,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:07:03,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:03,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:07:03,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:07:03,014 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) [2021-11-03 04:07:03,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:03,041 INFO L93 Difference]: Finished difference Result 277 states and 329 transitions. [2021-11-03 04:07:03,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:07:03,042 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 [2021-11-03 04:07:03,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:03,043 INFO L225 Difference]: With dead ends: 277 [2021-11-03 04:07:03,043 INFO L226 Difference]: Without dead ends: 277 [2021-11-03 04:07:03,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:07:03,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-03 04:07:03,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 227. [2021-11-03 04:07:03,048 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) [2021-11-03 04:07:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 269 transitions. [2021-11-03 04:07:03,049 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 269 transitions. Word has length 25 [2021-11-03 04:07:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:03,050 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 269 transitions. [2021-11-03 04:07:03,050 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) [2021-11-03 04:07:03,050 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 269 transitions. [2021-11-03 04:07:03,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:07:03,051 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:03,051 INFO L513 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] [2021-11-03 04:07:03,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-03 04:07:03,051 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)] === [2021-11-03 04:07:03,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:03,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1378140045, now seen corresponding path program 1 times [2021-11-03 04:07:03,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:03,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483020228] [2021-11-03 04:07:03,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:03,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:03,084 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:03,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483020228] [2021-11-03 04:07:03,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483020228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:03,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:03,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:03,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290108846] [2021-11-03 04:07:03,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:03,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:03,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:03,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:03,087 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) [2021-11-03 04:07:03,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:03,115 INFO L93 Difference]: Finished difference Result 238 states and 279 transitions. [2021-11-03 04:07:03,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:07:03,116 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 [2021-11-03 04:07:03,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:03,117 INFO L225 Difference]: With dead ends: 238 [2021-11-03 04:07:03,118 INFO L226 Difference]: Without dead ends: 217 [2021-11-03 04:07:03,118 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:07:03,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-03 04:07:03,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-11-03 04:07:03,122 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) [2021-11-03 04:07:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 257 transitions. [2021-11-03 04:07:03,123 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 257 transitions. Word has length 27 [2021-11-03 04:07:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:03,123 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 257 transitions. [2021-11-03 04:07:03,124 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) [2021-11-03 04:07:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 257 transitions. [2021-11-03 04:07:03,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:07:03,125 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:03,125 INFO L513 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] [2021-11-03 04:07:03,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-03 04:07:03,125 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)] === [2021-11-03 04:07:03,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:03,126 INFO L85 PathProgramCache]: Analyzing trace with hash -169609689, now seen corresponding path program 1 times [2021-11-03 04:07:03,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:03,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938550604] [2021-11-03 04:07:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:03,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:03,159 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:03,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938550604] [2021-11-03 04:07:03,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938550604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:03,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:03,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:03,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856462924] [2021-11-03 04:07:03,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:03,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:03,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:03,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:03,161 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) [2021-11-03 04:07:03,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:03,229 INFO L93 Difference]: Finished difference Result 215 states and 255 transitions. [2021-11-03 04:07:03,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:07:03,229 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 [2021-11-03 04:07:03,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:03,230 INFO L225 Difference]: With dead ends: 215 [2021-11-03 04:07:03,231 INFO L226 Difference]: Without dead ends: 197 [2021-11-03 04:07:03,231 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:07:03,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-03 04:07:03,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-03 04:07:03,235 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) [2021-11-03 04:07:03,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 237 transitions. [2021-11-03 04:07:03,236 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 237 transitions. Word has length 27 [2021-11-03 04:07:03,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:03,236 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 237 transitions. [2021-11-03 04:07:03,237 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) [2021-11-03 04:07:03,237 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 237 transitions. [2021-11-03 04:07:03,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:07:03,237 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:03,237 INFO L513 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] [2021-11-03 04:07:03,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-03 04:07:03,238 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)] === [2021-11-03 04:07:03,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:03,238 INFO L85 PathProgramCache]: Analyzing trace with hash 101877003, now seen corresponding path program 1 times [2021-11-03 04:07:03,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:03,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133673490] [2021-11-03 04:07:03,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:03,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:03,274 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:03,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133673490] [2021-11-03 04:07:03,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133673490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:03,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:03,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:07:03,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658153244] [2021-11-03 04:07:03,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:03,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:03,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:03,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:03,277 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) [2021-11-03 04:07:03,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:03,371 INFO L93 Difference]: Finished difference Result 234 states and 285 transitions. [2021-11-03 04:07:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:03,372 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 [2021-11-03 04:07:03,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:03,374 INFO L225 Difference]: With dead ends: 234 [2021-11-03 04:07:03,374 INFO L226 Difference]: Without dead ends: 234 [2021-11-03 04:07:03,376 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:03,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-03 04:07:03,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 178. [2021-11-03 04:07:03,381 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) [2021-11-03 04:07:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2021-11-03 04:07:03,382 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 28 [2021-11-03 04:07:03,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:03,382 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2021-11-03 04:07:03,382 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) [2021-11-03 04:07:03,383 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2021-11-03 04:07:03,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 04:07:03,383 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:03,383 INFO L513 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] [2021-11-03 04:07:03,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-03 04:07:03,384 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)] === [2021-11-03 04:07:03,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:03,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1362411376, now seen corresponding path program 1 times [2021-11-03 04:07:03,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:03,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132713234] [2021-11-03 04:07:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:03,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:03,471 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:03,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132713234] [2021-11-03 04:07:03,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132713234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:03,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:03,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:03,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135242702] [2021-11-03 04:07:03,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:03,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:03,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:03,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:03,473 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) [2021-11-03 04:07:03,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:03,635 INFO L93 Difference]: Finished difference Result 227 states and 277 transitions. [2021-11-03 04:07:03,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:07:03,636 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 [2021-11-03 04:07:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:03,637 INFO L225 Difference]: With dead ends: 227 [2021-11-03 04:07:03,637 INFO L226 Difference]: Without dead ends: 227 [2021-11-03 04:07:03,640 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:07:03,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-03 04:07:03,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 168. [2021-11-03 04:07:03,643 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) [2021-11-03 04:07:03,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 204 transitions. [2021-11-03 04:07:03,645 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 204 transitions. Word has length 37 [2021-11-03 04:07:03,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:03,645 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 204 transitions. [2021-11-03 04:07:03,646 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) [2021-11-03 04:07:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 204 transitions. [2021-11-03 04:07:03,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 04:07:03,646 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:03,647 INFO L513 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] [2021-11-03 04:07:03,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-03 04:07:03,647 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)] === [2021-11-03 04:07:03,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2027588443, now seen corresponding path program 1 times [2021-11-03 04:07:03,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:03,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666219967] [2021-11-03 04:07:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:03,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:03,764 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:03,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666219967] [2021-11-03 04:07:03,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666219967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:03,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:03,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-03 04:07:03,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095222122] [2021-11-03 04:07:03,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:07:03,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:03,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:07:03,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:07:03,766 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) [2021-11-03 04:07:03,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:03,949 INFO L93 Difference]: Finished difference Result 305 states and 369 transitions. [2021-11-03 04:07:03,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:07:03,949 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 [2021-11-03 04:07:03,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:03,951 INFO L225 Difference]: With dead ends: 305 [2021-11-03 04:07:03,952 INFO L226 Difference]: Without dead ends: 289 [2021-11-03 04:07:03,952 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:07:03,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-03 04:07:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 168. [2021-11-03 04:07:03,956 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) [2021-11-03 04:07:03,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 203 transitions. [2021-11-03 04:07:03,957 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 203 transitions. Word has length 38 [2021-11-03 04:07:03,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:03,958 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 203 transitions. [2021-11-03 04:07:03,958 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) [2021-11-03 04:07:03,958 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 203 transitions. [2021-11-03 04:07:03,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:07:03,959 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:03,959 INFO L513 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] [2021-11-03 04:07:03,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-03 04:07:03,959 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)] === [2021-11-03 04:07:03,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1509921306, now seen corresponding path program 1 times [2021-11-03 04:07:03,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:03,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958154348] [2021-11-03 04:07:03,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:03,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:04,044 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:04,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958154348] [2021-11-03 04:07:04,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958154348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:04,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:04,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-03 04:07:04,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816521854] [2021-11-03 04:07:04,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:07:04,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:04,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:07:04,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:07:04,046 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) [2021-11-03 04:07:04,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:04,161 INFO L93 Difference]: Finished difference Result 287 states and 351 transitions. [2021-11-03 04:07:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:07:04,161 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 [2021-11-03 04:07:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:04,163 INFO L225 Difference]: With dead ends: 287 [2021-11-03 04:07:04,163 INFO L226 Difference]: Without dead ends: 262 [2021-11-03 04:07:04,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:07:04,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-11-03 04:07:04,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 256. [2021-11-03 04:07:04,168 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) [2021-11-03 04:07:04,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 310 transitions. [2021-11-03 04:07:04,169 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 310 transitions. Word has length 39 [2021-11-03 04:07:04,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:04,169 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 310 transitions. [2021-11-03 04:07:04,169 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) [2021-11-03 04:07:04,170 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 310 transitions. [2021-11-03 04:07:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 04:07:04,170 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:04,170 INFO L513 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] [2021-11-03 04:07:04,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-03 04:07:04,171 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)] === [2021-11-03 04:07:04,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:04,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1106424513, now seen corresponding path program 1 times [2021-11-03 04:07:04,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:04,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731216097] [2021-11-03 04:07:04,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:04,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:04,218 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:04,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731216097] [2021-11-03 04:07:04,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731216097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:04,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:04,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:04,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120770352] [2021-11-03 04:07:04,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:04,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:04,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:04,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:04,221 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) [2021-11-03 04:07:04,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:04,257 INFO L93 Difference]: Finished difference Result 353 states and 418 transitions. [2021-11-03 04:07:04,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:07:04,258 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 [2021-11-03 04:07:04,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:04,260 INFO L225 Difference]: With dead ends: 353 [2021-11-03 04:07:04,260 INFO L226 Difference]: Without dead ends: 353 [2021-11-03 04:07:04,260 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:04,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-03 04:07:04,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 256. [2021-11-03 04:07:04,266 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) [2021-11-03 04:07:04,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 308 transitions. [2021-11-03 04:07:04,267 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 308 transitions. Word has length 41 [2021-11-03 04:07:04,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:04,267 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 308 transitions. [2021-11-03 04:07:04,268 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) [2021-11-03 04:07:04,268 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 308 transitions. [2021-11-03 04:07:04,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 04:07:04,268 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:04,268 INFO L513 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] [2021-11-03 04:07:04,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-03 04:07:04,269 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)] === [2021-11-03 04:07:04,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:04,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1174481534, now seen corresponding path program 1 times [2021-11-03 04:07:04,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:04,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025673342] [2021-11-03 04:07:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:04,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:04,341 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:04,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025673342] [2021-11-03 04:07:04,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025673342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:04,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:04,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-03 04:07:04,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549457127] [2021-11-03 04:07:04,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:07:04,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:04,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:07:04,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:07:04,343 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) [2021-11-03 04:07:04,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:04,466 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2021-11-03 04:07:04,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:07:04,467 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 [2021-11-03 04:07:04,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:04,468 INFO L225 Difference]: With dead ends: 275 [2021-11-03 04:07:04,469 INFO L226 Difference]: Without dead ends: 240 [2021-11-03 04:07:04,469 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:07:04,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-03 04:07:04,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 234. [2021-11-03 04:07:04,473 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) [2021-11-03 04:07:04,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 284 transitions. [2021-11-03 04:07:04,474 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 284 transitions. Word has length 41 [2021-11-03 04:07:04,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:04,475 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 284 transitions. [2021-11-03 04:07:04,475 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) [2021-11-03 04:07:04,475 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 284 transitions. [2021-11-03 04:07:04,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 04:07:04,476 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:04,476 INFO L513 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] [2021-11-03 04:07:04,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-03 04:07:04,476 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)] === [2021-11-03 04:07:04,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:04,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1266162763, now seen corresponding path program 1 times [2021-11-03 04:07:04,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:04,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144120396] [2021-11-03 04:07:04,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:04,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:04,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:04,569 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:04,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144120396] [2021-11-03 04:07:04,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144120396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:04,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:04,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-03 04:07:04,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249587495] [2021-11-03 04:07:04,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:07:04,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:04,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:07:04,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:07:04,572 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) [2021-11-03 04:07:04,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:04,679 INFO L93 Difference]: Finished difference Result 238 states and 285 transitions. [2021-11-03 04:07:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:07:04,680 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 [2021-11-03 04:07:04,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:04,682 INFO L225 Difference]: With dead ends: 238 [2021-11-03 04:07:04,682 INFO L226 Difference]: Without dead ends: 213 [2021-11-03 04:07:04,682 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:07:04,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-03 04:07:04,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 119. [2021-11-03 04:07:04,685 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) [2021-11-03 04:07:04,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2021-11-03 04:07:04,686 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 42 [2021-11-03 04:07:04,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:04,686 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2021-11-03 04:07:04,687 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) [2021-11-03 04:07:04,687 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2021-11-03 04:07:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 04:07:04,687 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:04,688 INFO L513 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] [2021-11-03 04:07:04,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-03 04:07:04,688 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)] === [2021-11-03 04:07:04,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:04,689 INFO L85 PathProgramCache]: Analyzing trace with hash -626528115, now seen corresponding path program 1 times [2021-11-03 04:07:04,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:04,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34041947] [2021-11-03 04:07:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:04,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:04,749 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:04,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34041947] [2021-11-03 04:07:04,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34041947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:04,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:04,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:04,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135084531] [2021-11-03 04:07:04,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:04,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:04,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:04,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:04,752 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) [2021-11-03 04:07:04,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:04,858 INFO L93 Difference]: Finished difference Result 168 states and 188 transitions. [2021-11-03 04:07:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:07:04,859 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 [2021-11-03 04:07:04,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:04,860 INFO L225 Difference]: With dead ends: 168 [2021-11-03 04:07:04,860 INFO L226 Difference]: Without dead ends: 166 [2021-11-03 04:07:04,861 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:07:04,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-03 04:07:04,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 108. [2021-11-03 04:07:04,863 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) [2021-11-03 04:07:04,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2021-11-03 04:07:04,864 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 51 [2021-11-03 04:07:04,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:04,864 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2021-11-03 04:07:04,864 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) [2021-11-03 04:07:04,864 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2021-11-03 04:07:04,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 04:07:04,865 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:04,865 INFO L513 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] [2021-11-03 04:07:04,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-03 04:07:04,866 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)] === [2021-11-03 04:07:04,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:04,866 INFO L85 PathProgramCache]: Analyzing trace with hash 210630491, now seen corresponding path program 1 times [2021-11-03 04:07:04,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:04,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114960751] [2021-11-03 04:07:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:04,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:04,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:04,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:04,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114960751] [2021-11-03 04:07:04,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114960751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:04,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:04,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:04,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993026506] [2021-11-03 04:07:04,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:04,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:04,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:04,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:04,937 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) [2021-11-03 04:07:05,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:05,084 INFO L93 Difference]: Finished difference Result 164 states and 180 transitions. [2021-11-03 04:07:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:07:05,085 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 [2021-11-03 04:07:05,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:05,086 INFO L225 Difference]: With dead ends: 164 [2021-11-03 04:07:05,086 INFO L226 Difference]: Without dead ends: 160 [2021-11-03 04:07:05,086 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:07:05,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-03 04:07:05,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 108. [2021-11-03 04:07:05,089 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) [2021-11-03 04:07:05,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 121 transitions. [2021-11-03 04:07:05,090 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 121 transitions. Word has length 63 [2021-11-03 04:07:05,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:05,090 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 121 transitions. [2021-11-03 04:07:05,090 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) [2021-11-03 04:07:05,090 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 121 transitions. [2021-11-03 04:07:05,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 04:07:05,091 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:05,091 INFO L513 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] [2021-11-03 04:07:05,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-03 04:07:05,092 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)] === [2021-11-03 04:07:05,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:05,093 INFO L85 PathProgramCache]: Analyzing trace with hash -979724378, now seen corresponding path program 1 times [2021-11-03 04:07:05,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:05,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346856253] [2021-11-03 04:07:05,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:05,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:05,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:05,202 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:05,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346856253] [2021-11-03 04:07:05,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346856253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:05,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:05,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:05,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107997688] [2021-11-03 04:07:05,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:05,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:05,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:05,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:05,206 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) [2021-11-03 04:07:05,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:05,325 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2021-11-03 04:07:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:07:05,325 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 [2021-11-03 04:07:05,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:05,326 INFO L225 Difference]: With dead ends: 150 [2021-11-03 04:07:05,326 INFO L226 Difference]: Without dead ends: 148 [2021-11-03 04:07:05,327 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:07:05,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-03 04:07:05,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 99. [2021-11-03 04:07:05,329 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) [2021-11-03 04:07:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2021-11-03 04:07:05,330 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 64 [2021-11-03 04:07:05,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:05,330 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2021-11-03 04:07:05,330 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) [2021-11-03 04:07:05,330 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2021-11-03 04:07:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 04:07:05,331 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:05,331 INFO L513 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] [2021-11-03 04:07:05,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-03 04:07:05,332 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)] === [2021-11-03 04:07:05,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:05,332 INFO L85 PathProgramCache]: Analyzing trace with hash 456981697, now seen corresponding path program 1 times [2021-11-03 04:07:05,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:07:05,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328336579] [2021-11-03 04:07:05,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:05,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:07:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:05,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:05,412 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:07:05,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328336579] [2021-11-03 04:07:05,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328336579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:05,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:05,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 04:07:05,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258479449] [2021-11-03 04:07:05,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:07:05,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:07:05,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:07:05,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:05,414 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) [2021-11-03 04:07:05,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:05,517 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2021-11-03 04:07:05,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:07:05,518 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 [2021-11-03 04:07:05,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:05,518 INFO L225 Difference]: With dead ends: 132 [2021-11-03 04:07:05,518 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 04:07:05,519 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:07:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 04:07:05,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 04:07:05,519 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) [2021-11-03 04:07:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 04:07:05,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2021-11-03 04:07:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:05,520 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 04:07:05,520 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) [2021-11-03 04:07:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 04:07:05,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 04:07:05,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,527 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,527 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,527 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,528 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,528 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,528 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,528 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,528 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,528 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,529 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,529 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,529 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,529 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,529 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,531 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,533 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,533 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,533 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,533 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,533 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,533 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,534 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,534 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,534 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,534 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:07:05,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-03 04:07:05,537 INFO L731 BasicCegarLoop]: Path program 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] [2021-11-03 04:07:05,539 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:07:05,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:07:05 BoogieIcfgContainer [2021-11-03 04:07:05,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:07:05,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:07:05,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:07:05,544 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:07:05,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:56" (3/4) ... [2021-11-03 04:07:05,548 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 04:07:05,595 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 282 nodes and edges [2021-11-03 04:07:05,601 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2021-11-03 04:07:05,607 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-03 04:07:05,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-03 04:07:05,895 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:07:05,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:07:05,897 INFO L168 Benchmark]: Toolchain (without parser) took 12851.53 ms. Allocated memory was 102.8 MB in the beginning and 216.0 MB in the end (delta: 113.2 MB). Free memory was 59.3 MB in the beginning and 65.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:07:05,898 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 76.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:07:05,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.53 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 67.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:07:05,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.12 ms. Allocated memory is still 102.8 MB. Free memory was 67.6 MB in the beginning and 56.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:07:05,899 INFO L168 Benchmark]: Boogie Preprocessor took 115.75 ms. Allocated memory is still 102.8 MB. Free memory was 56.2 MB in the beginning and 49.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:07:05,900 INFO L168 Benchmark]: RCFGBuilder took 2990.35 ms. Allocated memory was 102.8 MB in the beginning and 169.9 MB in the end (delta: 67.1 MB). Free memory was 49.3 MB in the beginning and 83.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:07:05,900 INFO L168 Benchmark]: TraceAbstraction took 8641.82 ms. Allocated memory was 169.9 MB in the beginning and 216.0 MB in the end (delta: 46.1 MB). Free memory was 83.8 MB in the beginning and 113.7 MB in the end (delta: -29.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:07:05,901 INFO L168 Benchmark]: Witness Printer took 352.00 ms. Allocated memory is still 216.0 MB. Free memory was 113.7 MB in the beginning and 65.9 MB in the end (delta: 47.7 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:07:05,903 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 76.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 586.53 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 67.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 158.12 ms. Allocated memory is still 102.8 MB. Free memory was 67.6 MB in the beginning and 56.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.75 ms. Allocated memory is still 102.8 MB. Free memory was 56.2 MB in the beginning and 49.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2990.35 ms. Allocated memory was 102.8 MB in the beginning and 169.9 MB in the end (delta: 67.1 MB). Free memory was 49.3 MB in the beginning and 83.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8641.82 ms. Allocated memory was 169.9 MB in the beginning and 216.0 MB in the end (delta: 46.1 MB). Free memory was 83.8 MB in the beginning and 113.7 MB in the end (delta: -29.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * Witness Printer took 352.00 ms. Allocated memory is still 216.0 MB. Free memory was 113.7 MB in the beginning and 65.9 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 8.5s, OverallIterations: 42, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 12138 SDtfs, 10247 SDslu, 13749 SDs, 0 SdLazy, 3891 SolverSat, 574 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 42 MinimizatonAttempts, 2528 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.6s 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! [2021-11-03 04:07:05,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ec1530-7797-4193-adf2-8ad7f57a101a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE