./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4df6794b9b3a948996212d63f7c149439c613ff1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:35:55,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:35:55,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:35:55,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:35:55,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:35:55,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:35:55,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:35:55,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:35:55,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:35:55,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:35:55,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:35:55,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:35:55,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:35:55,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:35:55,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:35:55,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:35:55,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:35:55,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:35:55,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:35:55,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:35:55,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:35:55,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:35:55,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:35:55,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:35:55,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:35:55,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:35:55,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:35:55,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:35:55,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:35:55,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:35:55,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:35:55,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:35:55,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:35:55,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:35:55,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:35:55,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:35:55,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:35:55,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:35:55,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:35:55,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:35:55,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:35:55,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-03 12:35:55,531 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:35:55,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:35:55,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:35:55,532 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:35:55,533 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:35:55,533 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:35:55,533 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:35:55,533 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:35:55,534 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:35:55,534 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:35:55,534 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:35:55,534 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:35:55,535 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:35:55,535 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:35:55,535 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:35:55,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 12:35:55,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 12:35:55,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:35:55,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:35:55,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:35:55,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:35:55,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:35:55,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:35:55,538 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-03 12:35:55,539 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-03 12:35:55,539 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-03 12:35:55,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:35:55,539 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:35:55,540 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:35:55,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:35:55,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:35:55,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:35:55,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:35:55,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:35:55,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:35:55,542 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:35:55,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:35:55,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:35:55,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:35:55,543 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-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4df6794b9b3a948996212d63f7c149439c613ff1 [2020-12-03 12:35:55,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:35:55,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:35:55,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:35:55,862 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:35:55,863 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:35:55,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/../../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2020-12-03 12:35:55,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/data/7cf15f62b/6572f657368a4f02898871d8f840402d/FLAGbd4d78a72 [2020-12-03 12:35:56,492 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:35:56,493 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2020-12-03 12:35:56,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/data/7cf15f62b/6572f657368a4f02898871d8f840402d/FLAGbd4d78a72 [2020-12-03 12:35:56,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/data/7cf15f62b/6572f657368a4f02898871d8f840402d [2020-12-03 12:35:56,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:35:56,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:35:56,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:35:56,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:35:56,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:35:56,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:35:56" (1/1) ... [2020-12-03 12:35:56,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33dcc67b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:56, skipping insertion in model container [2020-12-03 12:35:56,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:35:56" (1/1) ... [2020-12-03 12:35:56,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:35:56,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:35:57,162 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2020-12-03 12:35:57,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:35:57,361 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:35:57,376 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2020-12-03 12:35:57,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:35:57,520 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:35:57,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57 WrapperNode [2020-12-03 12:35:57,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:35:57,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:35:57,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:35:57,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:35:57,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... [2020-12-03 12:35:57,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... [2020-12-03 12:35:57,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:35:57,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:35:57,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:35:57,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:35:57,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... [2020-12-03 12:35:57,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... [2020-12-03 12:35:57,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... [2020-12-03 12:35:57,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... [2020-12-03 12:35:57,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... [2020-12-03 12:35:57,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... [2020-12-03 12:35:57,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... [2020-12-03 12:35:57,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:35:57,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:35:57,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:35:57,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:35:57,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:35:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:35:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:35:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:35:57,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:35:58,246 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,262 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,266 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,273 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,276 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,278 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,283 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,286 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,287 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,291 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,294 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,295 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,299 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,302 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,303 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,306 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,308 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,313 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,322 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,328 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,334 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:58,338 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:35:59,896 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##674: assume !false; [2020-12-03 12:35:59,897 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##673: assume false; [2020-12-03 12:35:59,898 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##618: assume !false; [2020-12-03 12:35:59,898 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##617: assume false; [2020-12-03 12:35:59,898 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##296: assume !false; [2020-12-03 12:35:59,898 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##295: assume false; [2020-12-03 12:35:59,899 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !false; [2020-12-03 12:35:59,899 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##255: assume false; [2020-12-03 12:35:59,899 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##217: assume !false; [2020-12-03 12:35:59,899 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##216: assume false; [2020-12-03 12:35:59,899 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##247: assume !false; [2020-12-03 12:35:59,900 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume false; [2020-12-03 12:35:59,902 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##724: assume !false; [2020-12-03 12:35:59,903 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##723: assume false; [2020-12-03 12:35:59,903 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2020-12-03 12:35:59,903 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2020-12-03 12:35:59,903 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##326: assume !false; [2020-12-03 12:35:59,903 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##325: assume false; [2020-12-03 12:35:59,904 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##335: assume !false; [2020-12-03 12:35:59,904 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##334: assume false; [2020-12-03 12:35:59,904 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##405: assume !false; [2020-12-03 12:35:59,904 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume false; [2020-12-03 12:35:59,905 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##412: assume false; [2020-12-03 12:35:59,905 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##413: assume !false; [2020-12-03 12:35:59,906 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##452: assume false; [2020-12-03 12:35:59,906 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##453: assume !false; [2020-12-03 12:35:59,907 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##483: assume !false; [2020-12-03 12:35:59,908 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##482: assume false; [2020-12-03 12:35:59,908 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##543: assume !false; [2020-12-03 12:35:59,909 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##542: assume false; [2020-12-03 12:35:59,912 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##98: assume !false; [2020-12-03 12:35:59,912 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume false; [2020-12-03 12:35:59,913 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##80: assume !false; [2020-12-03 12:35:59,913 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume !false; [2020-12-03 12:35:59,913 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume false; [2020-12-03 12:35:59,914 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2020-12-03 12:35:59,914 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2020-12-03 12:35:59,914 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume false; [2020-12-03 12:35:59,914 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##142: assume !false; [2020-12-03 12:35:59,914 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume false; [2020-12-03 12:35:59,915 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-12-03 12:35:59,915 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-12-03 12:35:59,915 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##573: assume !false; [2020-12-03 12:35:59,915 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##572: assume false; [2020-12-03 12:36:01,695 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:36:01,695 INFO L299 CfgBuilder]: Removed 267 assume(true) statements. [2020-12-03 12:36:01,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:01 BoogieIcfgContainer [2020-12-03 12:36:01,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:36:01,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:36:01,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:36:01,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:36:01,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:35:56" (1/3) ... [2020-12-03 12:36:01,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26eb408f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:36:01, skipping insertion in model container [2020-12-03 12:36:01,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:57" (2/3) ... [2020-12-03 12:36:01,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26eb408f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:36:01, skipping insertion in model container [2020-12-03 12:36:01,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:01" (3/3) ... [2020-12-03 12:36:01,707 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf_simpl1.cil.c [2020-12-03 12:36:01,722 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:36:01,726 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 52 error locations. [2020-12-03 12:36:01,737 INFO L253 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2020-12-03 12:36:01,756 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:36:01,756 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-03 12:36:01,756 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:36:01,757 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:36:01,757 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:36:01,757 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:36:01,757 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:36:01,757 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:36:01,779 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states. [2020-12-03 12:36:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 12:36:01,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:01,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-03 12:36:01,787 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:01,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:01,793 INFO L82 PathProgramCache]: Analyzing trace with hash 66558622, now seen corresponding path program 1 times [2020-12-03 12:36:01,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:01,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024971126] [2020-12-03 12:36:01,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:01,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:01,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024971126] [2020-12-03 12:36:01,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:01,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:01,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068630460] [2020-12-03 12:36:01,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:01,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:01,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:01,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:01,989 INFO L87 Difference]: Start difference. First operand 365 states. Second operand 3 states. [2020-12-03 12:36:02,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:02,111 INFO L93 Difference]: Finished difference Result 390 states and 526 transitions. [2020-12-03 12:36:02,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:02,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-03 12:36:02,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:02,145 INFO L225 Difference]: With dead ends: 390 [2020-12-03 12:36:02,147 INFO L226 Difference]: Without dead ends: 388 [2020-12-03 12:36:02,149 INFO L677 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 [2020-12-03 12:36:02,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-12-03 12:36:02,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 371. [2020-12-03 12:36:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-12-03 12:36:02,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 503 transitions. [2020-12-03 12:36:02,237 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 503 transitions. Word has length 4 [2020-12-03 12:36:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:02,237 INFO L481 AbstractCegarLoop]: Abstraction has 371 states and 503 transitions. [2020-12-03 12:36:02,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 503 transitions. [2020-12-03 12:36:02,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:36:02,238 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:02,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:36:02,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:36:02,239 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:02,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:02,240 INFO L82 PathProgramCache]: Analyzing trace with hash -718793609, now seen corresponding path program 1 times [2020-12-03 12:36:02,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:02,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566478550] [2020-12-03 12:36:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:02,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566478550] [2020-12-03 12:36:02,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:02,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:36:02,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933121632] [2020-12-03 12:36:02,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:02,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:02,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:02,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:02,319 INFO L87 Difference]: Start difference. First operand 371 states and 503 transitions. Second operand 3 states. [2020-12-03 12:36:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:02,436 INFO L93 Difference]: Finished difference Result 614 states and 827 transitions. [2020-12-03 12:36:02,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:02,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-03 12:36:02,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:02,441 INFO L225 Difference]: With dead ends: 614 [2020-12-03 12:36:02,441 INFO L226 Difference]: Without dead ends: 614 [2020-12-03 12:36:02,442 INFO L677 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 [2020-12-03 12:36:02,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2020-12-03 12:36:02,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 546. [2020-12-03 12:36:02,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-12-03 12:36:02,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 788 transitions. [2020-12-03 12:36:02,469 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 788 transitions. Word has length 6 [2020-12-03 12:36:02,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:02,469 INFO L481 AbstractCegarLoop]: Abstraction has 546 states and 788 transitions. [2020-12-03 12:36:02,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 788 transitions. [2020-12-03 12:36:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:36:02,470 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:02,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:36:02,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:36:02,471 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:02,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:02,472 INFO L82 PathProgramCache]: Analyzing trace with hash -461588425, now seen corresponding path program 1 times [2020-12-03 12:36:02,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:02,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375432087] [2020-12-03 12:36:02,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:02,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375432087] [2020-12-03 12:36:02,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:02,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:02,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435195734] [2020-12-03 12:36:02,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:02,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:02,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:02,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:02,531 INFO L87 Difference]: Start difference. First operand 546 states and 788 transitions. Second operand 3 states. [2020-12-03 12:36:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:02,854 INFO L93 Difference]: Finished difference Result 697 states and 996 transitions. [2020-12-03 12:36:02,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:02,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-03 12:36:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:02,859 INFO L225 Difference]: With dead ends: 697 [2020-12-03 12:36:02,859 INFO L226 Difference]: Without dead ends: 697 [2020-12-03 12:36:02,859 INFO L677 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 [2020-12-03 12:36:02,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-12-03 12:36:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 686. [2020-12-03 12:36:02,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2020-12-03 12:36:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 990 transitions. [2020-12-03 12:36:02,881 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 990 transitions. Word has length 6 [2020-12-03 12:36:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:02,882 INFO L481 AbstractCegarLoop]: Abstraction has 686 states and 990 transitions. [2020-12-03 12:36:02,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 990 transitions. [2020-12-03 12:36:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 12:36:02,883 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:02,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:02,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:36:02,883 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:02,884 INFO L82 PathProgramCache]: Analyzing trace with hash -799870650, now seen corresponding path program 1 times [2020-12-03 12:36:02,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:02,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601548442] [2020-12-03 12:36:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:02,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601548442] [2020-12-03 12:36:02,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:02,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:36:02,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867081455] [2020-12-03 12:36:02,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:02,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:02,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:02,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:02,952 INFO L87 Difference]: Start difference. First operand 686 states and 990 transitions. Second operand 3 states. [2020-12-03 12:36:02,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:02,959 INFO L93 Difference]: Finished difference Result 685 states and 989 transitions. [2020-12-03 12:36:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:02,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-03 12:36:02,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:02,966 INFO L225 Difference]: With dead ends: 685 [2020-12-03 12:36:02,966 INFO L226 Difference]: Without dead ends: 683 [2020-12-03 12:36:02,967 INFO L677 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 [2020-12-03 12:36:02,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2020-12-03 12:36:02,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 678. [2020-12-03 12:36:02,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-12-03 12:36:03,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 972 transitions. [2020-12-03 12:36:03,004 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 972 transitions. Word has length 7 [2020-12-03 12:36:03,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:03,005 INFO L481 AbstractCegarLoop]: Abstraction has 678 states and 972 transitions. [2020-12-03 12:36:03,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:03,005 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 972 transitions. [2020-12-03 12:36:03,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 12:36:03,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:03,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:03,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-03 12:36:03,007 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:03,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:03,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1759240774, now seen corresponding path program 1 times [2020-12-03 12:36:03,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:03,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19284566] [2020-12-03 12:36:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:03,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:03,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19284566] [2020-12-03 12:36:03,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:03,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:36:03,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479307974] [2020-12-03 12:36:03,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:03,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:03,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:03,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:03,064 INFO L87 Difference]: Start difference. First operand 678 states and 972 transitions. Second operand 3 states. [2020-12-03 12:36:03,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:03,318 INFO L93 Difference]: Finished difference Result 681 states and 974 transitions. [2020-12-03 12:36:03,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:03,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-03 12:36:03,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:03,323 INFO L225 Difference]: With dead ends: 681 [2020-12-03 12:36:03,324 INFO L226 Difference]: Without dead ends: 678 [2020-12-03 12:36:03,324 INFO L677 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 [2020-12-03 12:36:03,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-12-03 12:36:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 678. [2020-12-03 12:36:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-12-03 12:36:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 971 transitions. [2020-12-03 12:36:03,340 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 971 transitions. Word has length 10 [2020-12-03 12:36:03,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:03,340 INFO L481 AbstractCegarLoop]: Abstraction has 678 states and 971 transitions. [2020-12-03 12:36:03,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 971 transitions. [2020-12-03 12:36:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 12:36:03,342 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:03,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:03,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-03 12:36:03,343 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:03,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:03,344 INFO L82 PathProgramCache]: Analyzing trace with hash -564694405, now seen corresponding path program 1 times [2020-12-03 12:36:03,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:03,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31432165] [2020-12-03 12:36:03,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:03,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:03,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31432165] [2020-12-03 12:36:03,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:03,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:03,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775682515] [2020-12-03 12:36:03,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:03,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:03,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:03,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:03,430 INFO L87 Difference]: Start difference. First operand 678 states and 971 transitions. Second operand 3 states. [2020-12-03 12:36:03,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:03,494 INFO L93 Difference]: Finished difference Result 853 states and 1216 transitions. [2020-12-03 12:36:03,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:03,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-03 12:36:03,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:03,500 INFO L225 Difference]: With dead ends: 853 [2020-12-03 12:36:03,500 INFO L226 Difference]: Without dead ends: 853 [2020-12-03 12:36:03,501 INFO L677 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 [2020-12-03 12:36:03,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-12-03 12:36:03,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 724. [2020-12-03 12:36:03,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2020-12-03 12:36:03,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1061 transitions. [2020-12-03 12:36:03,519 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1061 transitions. Word has length 10 [2020-12-03 12:36:03,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:03,519 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1061 transitions. [2020-12-03 12:36:03,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:03,519 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1061 transitions. [2020-12-03 12:36:03,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-03 12:36:03,520 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:03,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:03,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-03 12:36:03,521 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:03,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:03,522 INFO L82 PathProgramCache]: Analyzing trace with hash -150243556, now seen corresponding path program 1 times [2020-12-03 12:36:03,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:03,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207323539] [2020-12-03 12:36:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:03,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:03,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207323539] [2020-12-03 12:36:03,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:03,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:03,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241449419] [2020-12-03 12:36:03,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:03,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:03,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:03,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:03,597 INFO L87 Difference]: Start difference. First operand 724 states and 1061 transitions. Second operand 3 states. [2020-12-03 12:36:03,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:03,820 INFO L93 Difference]: Finished difference Result 720 states and 1057 transitions. [2020-12-03 12:36:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:03,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-03 12:36:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:03,850 INFO L225 Difference]: With dead ends: 720 [2020-12-03 12:36:03,850 INFO L226 Difference]: Without dead ends: 720 [2020-12-03 12:36:03,851 INFO L677 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 [2020-12-03 12:36:03,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-12-03 12:36:03,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2020-12-03 12:36:03,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-12-03 12:36:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1057 transitions. [2020-12-03 12:36:03,866 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1057 transitions. Word has length 15 [2020-12-03 12:36:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:03,867 INFO L481 AbstractCegarLoop]: Abstraction has 720 states and 1057 transitions. [2020-12-03 12:36:03,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:03,867 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1057 transitions. [2020-12-03 12:36:03,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-03 12:36:03,874 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:03,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:03,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-03 12:36:03,876 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:03,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:03,876 INFO L82 PathProgramCache]: Analyzing trace with hash 389910539, now seen corresponding path program 1 times [2020-12-03 12:36:03,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:03,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957888499] [2020-12-03 12:36:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:03,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957888499] [2020-12-03 12:36:03,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:03,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:03,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845744733] [2020-12-03 12:36:03,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:03,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:03,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:03,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:03,927 INFO L87 Difference]: Start difference. First operand 720 states and 1057 transitions. Second operand 3 states. [2020-12-03 12:36:04,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:04,137 INFO L93 Difference]: Finished difference Result 732 states and 1070 transitions. [2020-12-03 12:36:04,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:04,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-03 12:36:04,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:04,143 INFO L225 Difference]: With dead ends: 732 [2020-12-03 12:36:04,143 INFO L226 Difference]: Without dead ends: 732 [2020-12-03 12:36:04,143 INFO L677 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 [2020-12-03 12:36:04,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-12-03 12:36:04,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2020-12-03 12:36:04,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-12-03 12:36:04,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2020-12-03 12:36:04,159 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 15 [2020-12-03 12:36:04,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:04,160 INFO L481 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2020-12-03 12:36:04,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:04,160 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2020-12-03 12:36:04,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 12:36:04,161 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:04,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:04,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-03 12:36:04,161 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:04,162 INFO L82 PathProgramCache]: Analyzing trace with hash -780095405, now seen corresponding path program 1 times [2020-12-03 12:36:04,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:04,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035493861] [2020-12-03 12:36:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:04,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:04,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035493861] [2020-12-03 12:36:04,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:04,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:04,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115737088] [2020-12-03 12:36:04,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:04,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:04,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:04,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:04,222 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand 4 states. [2020-12-03 12:36:04,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:04,461 INFO L93 Difference]: Finished difference Result 732 states and 1068 transitions. [2020-12-03 12:36:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:04,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-03 12:36:04,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:04,466 INFO L225 Difference]: With dead ends: 732 [2020-12-03 12:36:04,467 INFO L226 Difference]: Without dead ends: 732 [2020-12-03 12:36:04,467 INFO L677 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 [2020-12-03 12:36:04,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-12-03 12:36:04,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2020-12-03 12:36:04,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-12-03 12:36:04,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1068 transitions. [2020-12-03 12:36:04,484 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1068 transitions. Word has length 16 [2020-12-03 12:36:04,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:04,485 INFO L481 AbstractCegarLoop]: Abstraction has 732 states and 1068 transitions. [2020-12-03 12:36:04,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:04,485 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1068 transitions. [2020-12-03 12:36:04,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 12:36:04,486 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:04,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:04,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-03 12:36:04,486 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:04,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:04,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1053884378, now seen corresponding path program 1 times [2020-12-03 12:36:04,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:04,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114764766] [2020-12-03 12:36:04,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:04,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114764766] [2020-12-03 12:36:04,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:04,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:04,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553525092] [2020-12-03 12:36:04,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:04,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:04,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:04,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:04,565 INFO L87 Difference]: Start difference. First operand 732 states and 1068 transitions. Second operand 4 states. [2020-12-03 12:36:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:04,816 INFO L93 Difference]: Finished difference Result 732 states and 1066 transitions. [2020-12-03 12:36:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:04,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-03 12:36:04,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:04,821 INFO L225 Difference]: With dead ends: 732 [2020-12-03 12:36:04,821 INFO L226 Difference]: Without dead ends: 732 [2020-12-03 12:36:04,821 INFO L677 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 [2020-12-03 12:36:04,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-12-03 12:36:04,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2020-12-03 12:36:04,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-12-03 12:36:04,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1066 transitions. [2020-12-03 12:36:04,841 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1066 transitions. Word has length 17 [2020-12-03 12:36:04,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:04,842 INFO L481 AbstractCegarLoop]: Abstraction has 732 states and 1066 transitions. [2020-12-03 12:36:04,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1066 transitions. [2020-12-03 12:36:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-03 12:36:04,843 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:04,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:04,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-03 12:36:04,844 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:04,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:04,844 INFO L82 PathProgramCache]: Analyzing trace with hash -2053280150, now seen corresponding path program 1 times [2020-12-03 12:36:04,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:04,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303054052] [2020-12-03 12:36:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:04,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303054052] [2020-12-03 12:36:04,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:04,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:04,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599500427] [2020-12-03 12:36:04,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:04,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:04,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:04,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:04,874 INFO L87 Difference]: Start difference. First operand 732 states and 1066 transitions. Second operand 3 states. [2020-12-03 12:36:04,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:04,904 INFO L93 Difference]: Finished difference Result 743 states and 1076 transitions. [2020-12-03 12:36:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:04,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-03 12:36:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:04,908 INFO L225 Difference]: With dead ends: 743 [2020-12-03 12:36:04,909 INFO L226 Difference]: Without dead ends: 730 [2020-12-03 12:36:04,909 INFO L677 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 [2020-12-03 12:36:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-12-03 12:36:04,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2020-12-03 12:36:04,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2020-12-03 12:36:04,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1063 transitions. [2020-12-03 12:36:04,925 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1063 transitions. Word has length 18 [2020-12-03 12:36:04,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:04,926 INFO L481 AbstractCegarLoop]: Abstraction has 730 states and 1063 transitions. [2020-12-03 12:36:04,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:04,926 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1063 transitions. [2020-12-03 12:36:04,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-03 12:36:04,926 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:04,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:04,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-03 12:36:04,927 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:04,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:04,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1856284433, now seen corresponding path program 1 times [2020-12-03 12:36:04,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:04,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560597829] [2020-12-03 12:36:04,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:04,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:04,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560597829] [2020-12-03 12:36:04,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:04,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:04,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493594099] [2020-12-03 12:36:04,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:04,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:04,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:04,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:04,956 INFO L87 Difference]: Start difference. First operand 730 states and 1063 transitions. Second operand 3 states. [2020-12-03 12:36:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:04,991 INFO L93 Difference]: Finished difference Result 595 states and 822 transitions. [2020-12-03 12:36:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:04,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-03 12:36:04,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:04,994 INFO L225 Difference]: With dead ends: 595 [2020-12-03 12:36:04,995 INFO L226 Difference]: Without dead ends: 595 [2020-12-03 12:36:04,995 INFO L677 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 [2020-12-03 12:36:04,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-12-03 12:36:05,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 582. [2020-12-03 12:36:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-12-03 12:36:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 810 transitions. [2020-12-03 12:36:05,008 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 810 transitions. Word has length 19 [2020-12-03 12:36:05,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:05,008 INFO L481 AbstractCegarLoop]: Abstraction has 582 states and 810 transitions. [2020-12-03 12:36:05,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 810 transitions. [2020-12-03 12:36:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-03 12:36:05,009 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:05,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:05,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-03 12:36:05,009 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:05,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:05,010 INFO L82 PathProgramCache]: Analyzing trace with hash 922731661, now seen corresponding path program 1 times [2020-12-03 12:36:05,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:05,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539858405] [2020-12-03 12:36:05,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:05,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539858405] [2020-12-03 12:36:05,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:05,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:05,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117366052] [2020-12-03 12:36:05,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:05,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:05,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:05,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:05,040 INFO L87 Difference]: Start difference. First operand 582 states and 810 transitions. Second operand 3 states. [2020-12-03 12:36:05,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:05,322 INFO L93 Difference]: Finished difference Result 874 states and 1236 transitions. [2020-12-03 12:36:05,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:05,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-12-03 12:36:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:05,328 INFO L225 Difference]: With dead ends: 874 [2020-12-03 12:36:05,328 INFO L226 Difference]: Without dead ends: 874 [2020-12-03 12:36:05,329 INFO L677 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 [2020-12-03 12:36:05,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-12-03 12:36:05,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 592. [2020-12-03 12:36:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-12-03 12:36:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 821 transitions. [2020-12-03 12:36:05,345 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 821 transitions. Word has length 20 [2020-12-03 12:36:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:05,346 INFO L481 AbstractCegarLoop]: Abstraction has 592 states and 821 transitions. [2020-12-03 12:36:05,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 821 transitions. [2020-12-03 12:36:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-03 12:36:05,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:05,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:05,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-03 12:36:05,349 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:05,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:05,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1272900452, now seen corresponding path program 1 times [2020-12-03 12:36:05,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:05,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123098934] [2020-12-03 12:36:05,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:05,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123098934] [2020-12-03 12:36:05,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:05,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:05,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834957821] [2020-12-03 12:36:05,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:05,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:05,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:05,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:05,399 INFO L87 Difference]: Start difference. First operand 592 states and 821 transitions. Second operand 3 states. [2020-12-03 12:36:05,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:05,622 INFO L93 Difference]: Finished difference Result 608 states and 839 transitions. [2020-12-03 12:36:05,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:05,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-12-03 12:36:05,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:05,626 INFO L225 Difference]: With dead ends: 608 [2020-12-03 12:36:05,627 INFO L226 Difference]: Without dead ends: 608 [2020-12-03 12:36:05,628 INFO L677 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 [2020-12-03 12:36:05,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-12-03 12:36:05,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2020-12-03 12:36:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-12-03 12:36:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 839 transitions. [2020-12-03 12:36:05,641 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 839 transitions. Word has length 20 [2020-12-03 12:36:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:05,642 INFO L481 AbstractCegarLoop]: Abstraction has 608 states and 839 transitions. [2020-12-03 12:36:05,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 839 transitions. [2020-12-03 12:36:05,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-03 12:36:05,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:05,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:05,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-03 12:36:05,645 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:05,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:05,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1442497891, now seen corresponding path program 1 times [2020-12-03 12:36:05,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:05,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189302771] [2020-12-03 12:36:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:05,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189302771] [2020-12-03 12:36:05,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:05,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:05,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427605555] [2020-12-03 12:36:05,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:05,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:05,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:05,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:05,692 INFO L87 Difference]: Start difference. First operand 608 states and 839 transitions. Second operand 4 states. [2020-12-03 12:36:06,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:06,004 INFO L93 Difference]: Finished difference Result 890 states and 1253 transitions. [2020-12-03 12:36:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:06,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-12-03 12:36:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:06,010 INFO L225 Difference]: With dead ends: 890 [2020-12-03 12:36:06,010 INFO L226 Difference]: Without dead ends: 890 [2020-12-03 12:36:06,012 INFO L677 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 [2020-12-03 12:36:06,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-12-03 12:36:06,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 608. [2020-12-03 12:36:06,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-12-03 12:36:06,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 838 transitions. [2020-12-03 12:36:06,029 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 838 transitions. Word has length 21 [2020-12-03 12:36:06,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:06,029 INFO L481 AbstractCegarLoop]: Abstraction has 608 states and 838 transitions. [2020-12-03 12:36:06,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:06,029 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 838 transitions. [2020-12-03 12:36:06,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-03 12:36:06,030 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:06,030 INFO L422 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] [2020-12-03 12:36:06,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-03 12:36:06,031 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:06,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:06,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1993886312, now seen corresponding path program 1 times [2020-12-03 12:36:06,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:06,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670054180] [2020-12-03 12:36:06,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:06,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:06,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670054180] [2020-12-03 12:36:06,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:06,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:06,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218010227] [2020-12-03 12:36:06,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:06,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:06,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:06,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:06,114 INFO L87 Difference]: Start difference. First operand 608 states and 838 transitions. Second operand 5 states. [2020-12-03 12:36:06,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:06,356 INFO L93 Difference]: Finished difference Result 669 states and 898 transitions. [2020-12-03 12:36:06,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:36:06,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-12-03 12:36:06,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:06,360 INFO L225 Difference]: With dead ends: 669 [2020-12-03 12:36:06,360 INFO L226 Difference]: Without dead ends: 667 [2020-12-03 12:36:06,361 INFO L677 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 [2020-12-03 12:36:06,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-12-03 12:36:06,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 615. [2020-12-03 12:36:06,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-12-03 12:36:06,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 845 transitions. [2020-12-03 12:36:06,391 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 845 transitions. Word has length 22 [2020-12-03 12:36:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:06,392 INFO L481 AbstractCegarLoop]: Abstraction has 615 states and 845 transitions. [2020-12-03 12:36:06,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 845 transitions. [2020-12-03 12:36:06,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-03 12:36:06,393 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:06,393 INFO L422 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] [2020-12-03 12:36:06,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-03 12:36:06,393 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:06,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:06,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1993874396, now seen corresponding path program 1 times [2020-12-03 12:36:06,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:06,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805633624] [2020-12-03 12:36:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:06,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805633624] [2020-12-03 12:36:06,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:06,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:06,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045332936] [2020-12-03 12:36:06,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:06,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:06,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:06,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:06,454 INFO L87 Difference]: Start difference. First operand 615 states and 845 transitions. Second operand 4 states. [2020-12-03 12:36:06,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:06,775 INFO L93 Difference]: Finished difference Result 893 states and 1256 transitions. [2020-12-03 12:36:06,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:06,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-03 12:36:06,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:06,781 INFO L225 Difference]: With dead ends: 893 [2020-12-03 12:36:06,781 INFO L226 Difference]: Without dead ends: 874 [2020-12-03 12:36:06,782 INFO L677 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 [2020-12-03 12:36:06,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-12-03 12:36:06,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 600. [2020-12-03 12:36:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2020-12-03 12:36:06,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 828 transitions. [2020-12-03 12:36:06,797 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 828 transitions. Word has length 22 [2020-12-03 12:36:06,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:06,798 INFO L481 AbstractCegarLoop]: Abstraction has 600 states and 828 transitions. [2020-12-03 12:36:06,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:06,798 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 828 transitions. [2020-12-03 12:36:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-03 12:36:06,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:06,801 INFO L422 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] [2020-12-03 12:36:06,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-03 12:36:06,801 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:06,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:06,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1010366112, now seen corresponding path program 1 times [2020-12-03 12:36:06,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:06,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97075460] [2020-12-03 12:36:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:06,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:06,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97075460] [2020-12-03 12:36:06,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:06,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:06,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276295151] [2020-12-03 12:36:06,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:06,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:06,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:06,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:06,859 INFO L87 Difference]: Start difference. First operand 600 states and 828 transitions. Second operand 3 states. [2020-12-03 12:36:07,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:07,120 INFO L93 Difference]: Finished difference Result 815 states and 1134 transitions. [2020-12-03 12:36:07,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:07,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-03 12:36:07,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:07,125 INFO L225 Difference]: With dead ends: 815 [2020-12-03 12:36:07,126 INFO L226 Difference]: Without dead ends: 815 [2020-12-03 12:36:07,126 INFO L677 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 [2020-12-03 12:36:07,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-12-03 12:36:07,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 624. [2020-12-03 12:36:07,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-12-03 12:36:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 864 transitions. [2020-12-03 12:36:07,141 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 864 transitions. Word has length 22 [2020-12-03 12:36:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:07,142 INFO L481 AbstractCegarLoop]: Abstraction has 624 states and 864 transitions. [2020-12-03 12:36:07,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:07,142 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 864 transitions. [2020-12-03 12:36:07,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-03 12:36:07,143 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:07,143 INFO L422 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] [2020-12-03 12:36:07,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-03 12:36:07,143 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:07,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:07,144 INFO L82 PathProgramCache]: Analyzing trace with hash 996767456, now seen corresponding path program 1 times [2020-12-03 12:36:07,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:07,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772703479] [2020-12-03 12:36:07,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:07,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772703479] [2020-12-03 12:36:07,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:07,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:36:07,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659644409] [2020-12-03 12:36:07,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:07,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:07,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:07,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:07,256 INFO L87 Difference]: Start difference. First operand 624 states and 864 transitions. Second operand 4 states. [2020-12-03 12:36:07,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:07,390 INFO L93 Difference]: Finished difference Result 934 states and 1286 transitions. [2020-12-03 12:36:07,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:07,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-03 12:36:07,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:07,395 INFO L225 Difference]: With dead ends: 934 [2020-12-03 12:36:07,396 INFO L226 Difference]: Without dead ends: 934 [2020-12-03 12:36:07,396 INFO L677 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 [2020-12-03 12:36:07,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-12-03 12:36:07,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 660. [2020-12-03 12:36:07,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2020-12-03 12:36:07,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 900 transitions. [2020-12-03 12:36:07,413 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 900 transitions. Word has length 22 [2020-12-03 12:36:07,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:07,413 INFO L481 AbstractCegarLoop]: Abstraction has 660 states and 900 transitions. [2020-12-03 12:36:07,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:07,414 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 900 transitions. [2020-12-03 12:36:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-03 12:36:07,414 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:07,414 INFO L422 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] [2020-12-03 12:36:07,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-03 12:36:07,415 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:07,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:07,415 INFO L82 PathProgramCache]: Analyzing trace with hash -661081226, now seen corresponding path program 1 times [2020-12-03 12:36:07,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:07,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601858859] [2020-12-03 12:36:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:07,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:07,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601858859] [2020-12-03 12:36:07,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:07,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:07,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118869783] [2020-12-03 12:36:07,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:07,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:07,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:07,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:07,456 INFO L87 Difference]: Start difference. First operand 660 states and 900 transitions. Second operand 5 states. [2020-12-03 12:36:07,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:07,530 INFO L93 Difference]: Finished difference Result 687 states and 925 transitions. [2020-12-03 12:36:07,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 12:36:07,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-12-03 12:36:07,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:07,534 INFO L225 Difference]: With dead ends: 687 [2020-12-03 12:36:07,534 INFO L226 Difference]: Without dead ends: 658 [2020-12-03 12:36:07,535 INFO L677 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 [2020-12-03 12:36:07,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-12-03 12:36:07,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-12-03 12:36:07,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-12-03 12:36:07,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 896 transitions. [2020-12-03 12:36:07,548 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 896 transitions. Word has length 23 [2020-12-03 12:36:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:07,549 INFO L481 AbstractCegarLoop]: Abstraction has 658 states and 896 transitions. [2020-12-03 12:36:07,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 896 transitions. [2020-12-03 12:36:07,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-03 12:36:07,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:07,549 INFO L422 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] [2020-12-03 12:36:07,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-03 12:36:07,550 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:07,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:07,550 INFO L82 PathProgramCache]: Analyzing trace with hash 149765291, now seen corresponding path program 1 times [2020-12-03 12:36:07,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:07,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782967800] [2020-12-03 12:36:07,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:07,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782967800] [2020-12-03 12:36:07,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:07,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:07,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332295110] [2020-12-03 12:36:07,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:07,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:07,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:07,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:07,585 INFO L87 Difference]: Start difference. First operand 658 states and 896 transitions. Second operand 4 states. [2020-12-03 12:36:07,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:07,815 INFO L93 Difference]: Finished difference Result 658 states and 894 transitions. [2020-12-03 12:36:07,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:07,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-12-03 12:36:07,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:07,819 INFO L225 Difference]: With dead ends: 658 [2020-12-03 12:36:07,819 INFO L226 Difference]: Without dead ends: 658 [2020-12-03 12:36:07,820 INFO L677 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 [2020-12-03 12:36:07,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-12-03 12:36:07,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-12-03 12:36:07,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-12-03 12:36:07,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 894 transitions. [2020-12-03 12:36:07,833 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 894 transitions. Word has length 23 [2020-12-03 12:36:07,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:07,833 INFO L481 AbstractCegarLoop]: Abstraction has 658 states and 894 transitions. [2020-12-03 12:36:07,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:07,834 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 894 transitions. [2020-12-03 12:36:07,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-03 12:36:07,834 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:07,835 INFO L422 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] [2020-12-03 12:36:07,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-03 12:36:07,835 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:07,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:07,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1903783423, now seen corresponding path program 1 times [2020-12-03 12:36:07,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:07,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175197581] [2020-12-03 12:36:07,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:07,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175197581] [2020-12-03 12:36:07,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:07,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:07,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996029641] [2020-12-03 12:36:07,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:07,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:07,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:07,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:07,885 INFO L87 Difference]: Start difference. First operand 658 states and 894 transitions. Second operand 4 states. [2020-12-03 12:36:08,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:08,139 INFO L93 Difference]: Finished difference Result 673 states and 897 transitions. [2020-12-03 12:36:08,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:08,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-12-03 12:36:08,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:08,143 INFO L225 Difference]: With dead ends: 673 [2020-12-03 12:36:08,144 INFO L226 Difference]: Without dead ends: 673 [2020-12-03 12:36:08,145 INFO L677 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 [2020-12-03 12:36:08,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2020-12-03 12:36:08,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 658. [2020-12-03 12:36:08,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-12-03 12:36:08,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 882 transitions. [2020-12-03 12:36:08,158 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 882 transitions. Word has length 23 [2020-12-03 12:36:08,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:08,159 INFO L481 AbstractCegarLoop]: Abstraction has 658 states and 882 transitions. [2020-12-03 12:36:08,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:08,159 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 882 transitions. [2020-12-03 12:36:08,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-03 12:36:08,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:08,160 INFO L422 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] [2020-12-03 12:36:08,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-03 12:36:08,161 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:08,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:08,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1600920611, now seen corresponding path program 1 times [2020-12-03 12:36:08,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:08,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999579304] [2020-12-03 12:36:08,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:08,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:08,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999579304] [2020-12-03 12:36:08,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:08,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:08,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738298086] [2020-12-03 12:36:08,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:08,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:08,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:08,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:08,236 INFO L87 Difference]: Start difference. First operand 658 states and 882 transitions. Second operand 3 states. [2020-12-03 12:36:08,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:08,516 INFO L93 Difference]: Finished difference Result 886 states and 1213 transitions. [2020-12-03 12:36:08,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:08,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-03 12:36:08,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:08,521 INFO L225 Difference]: With dead ends: 886 [2020-12-03 12:36:08,522 INFO L226 Difference]: Without dead ends: 886 [2020-12-03 12:36:08,522 INFO L677 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 [2020-12-03 12:36:08,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-12-03 12:36:08,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 654. [2020-12-03 12:36:08,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2020-12-03 12:36:08,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 876 transitions. [2020-12-03 12:36:08,541 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 876 transitions. Word has length 24 [2020-12-03 12:36:08,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:08,542 INFO L481 AbstractCegarLoop]: Abstraction has 654 states and 876 transitions. [2020-12-03 12:36:08,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 876 transitions. [2020-12-03 12:36:08,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-03 12:36:08,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:08,543 INFO L422 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] [2020-12-03 12:36:08,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-03 12:36:08,550 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:08,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:08,551 INFO L82 PathProgramCache]: Analyzing trace with hash -63509997, now seen corresponding path program 1 times [2020-12-03 12:36:08,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:08,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863408317] [2020-12-03 12:36:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:08,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:08,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863408317] [2020-12-03 12:36:08,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:08,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:08,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853363466] [2020-12-03 12:36:08,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:08,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:08,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:08,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:08,615 INFO L87 Difference]: Start difference. First operand 654 states and 876 transitions. Second operand 4 states. [2020-12-03 12:36:08,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:08,851 INFO L93 Difference]: Finished difference Result 657 states and 877 transitions. [2020-12-03 12:36:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:08,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-12-03 12:36:08,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:08,855 INFO L225 Difference]: With dead ends: 657 [2020-12-03 12:36:08,855 INFO L226 Difference]: Without dead ends: 657 [2020-12-03 12:36:08,855 INFO L677 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 [2020-12-03 12:36:08,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-12-03 12:36:08,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 642. [2020-12-03 12:36:08,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2020-12-03 12:36:08,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 862 transitions. [2020-12-03 12:36:08,868 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 862 transitions. Word has length 24 [2020-12-03 12:36:08,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:08,869 INFO L481 AbstractCegarLoop]: Abstraction has 642 states and 862 transitions. [2020-12-03 12:36:08,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:08,869 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 862 transitions. [2020-12-03 12:36:08,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-03 12:36:08,869 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:08,870 INFO L422 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] [2020-12-03 12:36:08,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-03 12:36:08,870 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:08,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:08,871 INFO L82 PathProgramCache]: Analyzing trace with hash 471088687, now seen corresponding path program 1 times [2020-12-03 12:36:08,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:08,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537817796] [2020-12-03 12:36:08,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:08,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:08,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537817796] [2020-12-03 12:36:08,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:08,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:08,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782531798] [2020-12-03 12:36:08,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:08,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:08,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:08,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:08,902 INFO L87 Difference]: Start difference. First operand 642 states and 862 transitions. Second operand 3 states. [2020-12-03 12:36:08,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:08,935 INFO L93 Difference]: Finished difference Result 260 states and 316 transitions. [2020-12-03 12:36:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:08,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-03 12:36:08,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:08,938 INFO L225 Difference]: With dead ends: 260 [2020-12-03 12:36:08,938 INFO L226 Difference]: Without dead ends: 260 [2020-12-03 12:36:08,938 INFO L677 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 [2020-12-03 12:36:08,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-12-03 12:36:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2020-12-03 12:36:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-12-03 12:36:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 316 transitions. [2020-12-03 12:36:08,944 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 316 transitions. Word has length 24 [2020-12-03 12:36:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:08,945 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 316 transitions. [2020-12-03 12:36:08,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:08,945 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 316 transitions. [2020-12-03 12:36:08,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-03 12:36:08,946 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:08,946 INFO L422 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] [2020-12-03 12:36:08,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-03 12:36:08,946 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:08,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:08,947 INFO L82 PathProgramCache]: Analyzing trace with hash -920256136, now seen corresponding path program 1 times [2020-12-03 12:36:08,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:08,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626751944] [2020-12-03 12:36:08,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:09,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626751944] [2020-12-03 12:36:09,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:09,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:09,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167814063] [2020-12-03 12:36:09,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:09,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:09,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:09,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:09,043 INFO L87 Difference]: Start difference. First operand 260 states and 316 transitions. Second operand 5 states. [2020-12-03 12:36:09,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:09,345 INFO L93 Difference]: Finished difference Result 275 states and 332 transitions. [2020-12-03 12:36:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:36:09,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-03 12:36:09,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:09,347 INFO L225 Difference]: With dead ends: 275 [2020-12-03 12:36:09,348 INFO L226 Difference]: Without dead ends: 275 [2020-12-03 12:36:09,348 INFO L677 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 [2020-12-03 12:36:09,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-12-03 12:36:09,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 260. [2020-12-03 12:36:09,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-12-03 12:36:09,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 316 transitions. [2020-12-03 12:36:09,354 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 316 transitions. Word has length 24 [2020-12-03 12:36:09,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:09,354 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 316 transitions. [2020-12-03 12:36:09,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:09,354 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 316 transitions. [2020-12-03 12:36:09,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-03 12:36:09,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:09,355 INFO L422 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] [2020-12-03 12:36:09,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-03 12:36:09,355 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:09,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:09,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1928660301, now seen corresponding path program 1 times [2020-12-03 12:36:09,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:09,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750186276] [2020-12-03 12:36:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:09,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750186276] [2020-12-03 12:36:09,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:09,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:36:09,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077384119] [2020-12-03 12:36:09,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:09,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:09,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:09,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:09,419 INFO L87 Difference]: Start difference. First operand 260 states and 316 transitions. Second operand 4 states. [2020-12-03 12:36:09,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:09,472 INFO L93 Difference]: Finished difference Result 272 states and 327 transitions. [2020-12-03 12:36:09,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:09,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-03 12:36:09,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:09,475 INFO L225 Difference]: With dead ends: 272 [2020-12-03 12:36:09,475 INFO L226 Difference]: Without dead ends: 271 [2020-12-03 12:36:09,475 INFO L677 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 [2020-12-03 12:36:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-12-03 12:36:09,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 266. [2020-12-03 12:36:09,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-03 12:36:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 322 transitions. [2020-12-03 12:36:09,480 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 322 transitions. Word has length 25 [2020-12-03 12:36:09,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:09,480 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 322 transitions. [2020-12-03 12:36:09,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 322 transitions. [2020-12-03 12:36:09,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-03 12:36:09,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:09,481 INFO L422 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] [2020-12-03 12:36:09,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-03 12:36:09,482 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:09,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:09,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1928648385, now seen corresponding path program 1 times [2020-12-03 12:36:09,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:09,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101017022] [2020-12-03 12:36:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:09,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101017022] [2020-12-03 12:36:09,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:09,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:09,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002417238] [2020-12-03 12:36:09,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:09,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:09,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:09,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:09,545 INFO L87 Difference]: Start difference. First operand 266 states and 322 transitions. Second operand 4 states. [2020-12-03 12:36:09,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:09,702 INFO L93 Difference]: Finished difference Result 268 states and 322 transitions. [2020-12-03 12:36:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:09,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-03 12:36:09,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:09,704 INFO L225 Difference]: With dead ends: 268 [2020-12-03 12:36:09,704 INFO L226 Difference]: Without dead ends: 251 [2020-12-03 12:36:09,704 INFO L677 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 [2020-12-03 12:36:09,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-12-03 12:36:09,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2020-12-03 12:36:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-12-03 12:36:09,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 305 transitions. [2020-12-03 12:36:09,709 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 305 transitions. Word has length 25 [2020-12-03 12:36:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:09,709 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 305 transitions. [2020-12-03 12:36:09,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 305 transitions. [2020-12-03 12:36:09,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-03 12:36:09,710 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:09,710 INFO L422 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] [2020-12-03 12:36:09,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-03 12:36:09,711 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:09,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:09,711 INFO L82 PathProgramCache]: Analyzing trace with hash 295026474, now seen corresponding path program 1 times [2020-12-03 12:36:09,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:09,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755026141] [2020-12-03 12:36:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:09,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755026141] [2020-12-03 12:36:09,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:09,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:36:09,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482227692] [2020-12-03 12:36:09,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:09,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:09,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:09,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:09,738 INFO L87 Difference]: Start difference. First operand 251 states and 305 transitions. Second operand 3 states. [2020-12-03 12:36:09,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:09,783 INFO L93 Difference]: Finished difference Result 277 states and 329 transitions. [2020-12-03 12:36:09,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:09,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-03 12:36:09,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:09,785 INFO L225 Difference]: With dead ends: 277 [2020-12-03 12:36:09,785 INFO L226 Difference]: Without dead ends: 277 [2020-12-03 12:36:09,787 INFO L677 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 [2020-12-03 12:36:09,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-12-03 12:36:09,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 227. [2020-12-03 12:36:09,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-12-03 12:36:09,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 269 transitions. [2020-12-03 12:36:09,791 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 269 transitions. Word has length 25 [2020-12-03 12:36:09,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:09,792 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 269 transitions. [2020-12-03 12:36:09,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:09,792 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 269 transitions. [2020-12-03 12:36:09,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-03 12:36:09,792 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:09,792 INFO L422 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] [2020-12-03 12:36:09,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-03 12:36:09,793 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:09,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:09,794 INFO L82 PathProgramCache]: Analyzing trace with hash 810251111, now seen corresponding path program 1 times [2020-12-03 12:36:09,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:09,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340866280] [2020-12-03 12:36:09,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:09,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340866280] [2020-12-03 12:36:09,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:09,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:09,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166697529] [2020-12-03 12:36:09,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:09,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:09,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:09,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:09,839 INFO L87 Difference]: Start difference. First operand 227 states and 269 transitions. Second operand 5 states. [2020-12-03 12:36:09,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:09,884 INFO L93 Difference]: Finished difference Result 238 states and 279 transitions. [2020-12-03 12:36:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:36:09,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-03 12:36:09,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:09,886 INFO L225 Difference]: With dead ends: 238 [2020-12-03 12:36:09,886 INFO L226 Difference]: Without dead ends: 217 [2020-12-03 12:36:09,887 INFO L677 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 [2020-12-03 12:36:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-12-03 12:36:09,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-12-03 12:36:09,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-12-03 12:36:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 257 transitions. [2020-12-03 12:36:09,892 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 257 transitions. Word has length 27 [2020-12-03 12:36:09,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:09,892 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 257 transitions. [2020-12-03 12:36:09,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:09,892 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 257 transitions. [2020-12-03 12:36:09,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-03 12:36:09,893 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:09,893 INFO L422 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] [2020-12-03 12:36:09,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-03 12:36:09,893 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:09,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1641364524, now seen corresponding path program 1 times [2020-12-03 12:36:09,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:09,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234143767] [2020-12-03 12:36:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:09,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234143767] [2020-12-03 12:36:09,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:09,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:09,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604405729] [2020-12-03 12:36:09,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:09,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:09,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:09,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:09,971 INFO L87 Difference]: Start difference. First operand 217 states and 257 transitions. Second operand 5 states. [2020-12-03 12:36:10,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:10,093 INFO L93 Difference]: Finished difference Result 215 states and 255 transitions. [2020-12-03 12:36:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:36:10,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-03 12:36:10,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:10,094 INFO L225 Difference]: With dead ends: 215 [2020-12-03 12:36:10,095 INFO L226 Difference]: Without dead ends: 197 [2020-12-03 12:36:10,095 INFO L677 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 [2020-12-03 12:36:10,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-12-03 12:36:10,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-12-03 12:36:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-12-03 12:36:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 237 transitions. [2020-12-03 12:36:10,099 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 237 transitions. Word has length 27 [2020-12-03 12:36:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:10,100 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 237 transitions. [2020-12-03 12:36:10,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 237 transitions. [2020-12-03 12:36:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-03 12:36:10,100 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:10,100 INFO L422 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] [2020-12-03 12:36:10,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-03 12:36:10,101 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:10,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:10,102 INFO L82 PathProgramCache]: Analyzing trace with hash 929692312, now seen corresponding path program 1 times [2020-12-03 12:36:10,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:10,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672033239] [2020-12-03 12:36:10,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:10,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672033239] [2020-12-03 12:36:10,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:10,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:36:10,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277680602] [2020-12-03 12:36:10,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:10,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:10,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:10,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:10,153 INFO L87 Difference]: Start difference. First operand 197 states and 237 transitions. Second operand 4 states. [2020-12-03 12:36:10,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:10,290 INFO L93 Difference]: Finished difference Result 234 states and 285 transitions. [2020-12-03 12:36:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:36:10,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-12-03 12:36:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:10,292 INFO L225 Difference]: With dead ends: 234 [2020-12-03 12:36:10,292 INFO L226 Difference]: Without dead ends: 234 [2020-12-03 12:36:10,292 INFO L677 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 [2020-12-03 12:36:10,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-12-03 12:36:10,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 178. [2020-12-03 12:36:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-03 12:36:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2020-12-03 12:36:10,296 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 28 [2020-12-03 12:36:10,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:10,296 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2020-12-03 12:36:10,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:10,296 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2020-12-03 12:36:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-03 12:36:10,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:10,297 INFO L422 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] [2020-12-03 12:36:10,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-03 12:36:10,297 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:10,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:10,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1302229003, now seen corresponding path program 1 times [2020-12-03 12:36:10,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:10,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513803017] [2020-12-03 12:36:10,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:10,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:10,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513803017] [2020-12-03 12:36:10,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:10,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:10,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542389481] [2020-12-03 12:36:10,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:10,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:10,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:10,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:10,393 INFO L87 Difference]: Start difference. First operand 178 states and 217 transitions. Second operand 5 states. [2020-12-03 12:36:10,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:10,603 INFO L93 Difference]: Finished difference Result 227 states and 277 transitions. [2020-12-03 12:36:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:36:10,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-12-03 12:36:10,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:10,604 INFO L225 Difference]: With dead ends: 227 [2020-12-03 12:36:10,604 INFO L226 Difference]: Without dead ends: 227 [2020-12-03 12:36:10,606 INFO L677 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 [2020-12-03 12:36:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-12-03 12:36:10,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 168. [2020-12-03 12:36:10,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-12-03 12:36:10,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 204 transitions. [2020-12-03 12:36:10,609 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 204 transitions. Word has length 37 [2020-12-03 12:36:10,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:10,610 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 204 transitions. [2020-12-03 12:36:10,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 204 transitions. [2020-12-03 12:36:10,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-03 12:36:10,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:10,610 INFO L422 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] [2020-12-03 12:36:10,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-03 12:36:10,611 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:10,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:10,611 INFO L82 PathProgramCache]: Analyzing trace with hash 757879666, now seen corresponding path program 1 times [2020-12-03 12:36:10,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:10,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558243593] [2020-12-03 12:36:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:10,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558243593] [2020-12-03 12:36:10,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:10,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-03 12:36:10,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836724699] [2020-12-03 12:36:10,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-03 12:36:10,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:10,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-03 12:36:10,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:36:10,731 INFO L87 Difference]: Start difference. First operand 168 states and 204 transitions. Second operand 8 states. [2020-12-03 12:36:11,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:11,014 INFO L93 Difference]: Finished difference Result 305 states and 369 transitions. [2020-12-03 12:36:11,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:36:11,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-12-03 12:36:11,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:11,017 INFO L225 Difference]: With dead ends: 305 [2020-12-03 12:36:11,017 INFO L226 Difference]: Without dead ends: 289 [2020-12-03 12:36:11,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-12-03 12:36:11,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-12-03 12:36:11,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 168. [2020-12-03 12:36:11,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-12-03 12:36:11,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 203 transitions. [2020-12-03 12:36:11,021 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 203 transitions. Word has length 38 [2020-12-03 12:36:11,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:11,021 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 203 transitions. [2020-12-03 12:36:11,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-03 12:36:11,021 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 203 transitions. [2020-12-03 12:36:11,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-03 12:36:11,022 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:11,022 INFO L422 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] [2020-12-03 12:36:11,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-03 12:36:11,022 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:11,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:11,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1464250517, now seen corresponding path program 1 times [2020-12-03 12:36:11,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:11,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161322269] [2020-12-03 12:36:11,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:11,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:11,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161322269] [2020-12-03 12:36:11,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:11,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-03 12:36:11,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914184744] [2020-12-03 12:36:11,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-03 12:36:11,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:11,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-03 12:36:11,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:36:11,142 INFO L87 Difference]: Start difference. First operand 168 states and 203 transitions. Second operand 8 states. [2020-12-03 12:36:11,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:11,425 INFO L93 Difference]: Finished difference Result 287 states and 351 transitions. [2020-12-03 12:36:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:36:11,425 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2020-12-03 12:36:11,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:11,427 INFO L225 Difference]: With dead ends: 287 [2020-12-03 12:36:11,427 INFO L226 Difference]: Without dead ends: 262 [2020-12-03 12:36:11,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-12-03 12:36:11,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-12-03 12:36:11,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 256. [2020-12-03 12:36:11,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-12-03 12:36:11,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 310 transitions. [2020-12-03 12:36:11,432 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 310 transitions. Word has length 39 [2020-12-03 12:36:11,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:11,432 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 310 transitions. [2020-12-03 12:36:11,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-03 12:36:11,433 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 310 transitions. [2020-12-03 12:36:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-03 12:36:11,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:11,433 INFO L422 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] [2020-12-03 12:36:11,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-03 12:36:11,434 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:11,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:11,434 INFO L82 PathProgramCache]: Analyzing trace with hash -669639601, now seen corresponding path program 1 times [2020-12-03 12:36:11,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:11,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963779130] [2020-12-03 12:36:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:11,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963779130] [2020-12-03 12:36:11,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:11,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:11,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124941466] [2020-12-03 12:36:11,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:11,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:11,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:11,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:11,493 INFO L87 Difference]: Start difference. First operand 256 states and 310 transitions. Second operand 5 states. [2020-12-03 12:36:11,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:11,553 INFO L93 Difference]: Finished difference Result 353 states and 418 transitions. [2020-12-03 12:36:11,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:36:11,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-03 12:36:11,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:11,555 INFO L225 Difference]: With dead ends: 353 [2020-12-03 12:36:11,555 INFO L226 Difference]: Without dead ends: 353 [2020-12-03 12:36:11,556 INFO L677 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 [2020-12-03 12:36:11,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-12-03 12:36:11,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 256. [2020-12-03 12:36:11,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-12-03 12:36:11,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 308 transitions. [2020-12-03 12:36:11,561 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 308 transitions. Word has length 41 [2020-12-03 12:36:11,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:11,561 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 308 transitions. [2020-12-03 12:36:11,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:11,561 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 308 transitions. [2020-12-03 12:36:11,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-03 12:36:11,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:11,562 INFO L422 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] [2020-12-03 12:36:11,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-03 12:36:11,562 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:11,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:11,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1611266446, now seen corresponding path program 1 times [2020-12-03 12:36:11,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:11,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739408916] [2020-12-03 12:36:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:11,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739408916] [2020-12-03 12:36:11,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:11,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-03 12:36:11,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496129772] [2020-12-03 12:36:11,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-03 12:36:11,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:11,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-03 12:36:11,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:36:11,653 INFO L87 Difference]: Start difference. First operand 256 states and 308 transitions. Second operand 8 states. [2020-12-03 12:36:11,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:11,812 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2020-12-03 12:36:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-03 12:36:11,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-12-03 12:36:11,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:11,813 INFO L225 Difference]: With dead ends: 275 [2020-12-03 12:36:11,813 INFO L226 Difference]: Without dead ends: 240 [2020-12-03 12:36:11,814 INFO L677 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 [2020-12-03 12:36:11,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-12-03 12:36:11,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 234. [2020-12-03 12:36:11,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-12-03 12:36:11,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 284 transitions. [2020-12-03 12:36:11,818 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 284 transitions. Word has length 41 [2020-12-03 12:36:11,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:11,818 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 284 transitions. [2020-12-03 12:36:11,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-03 12:36:11,818 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 284 transitions. [2020-12-03 12:36:11,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-03 12:36:11,819 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:11,819 INFO L422 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] [2020-12-03 12:36:11,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-03 12:36:11,820 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:11,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:11,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1067261171, now seen corresponding path program 1 times [2020-12-03 12:36:11,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:11,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558595123] [2020-12-03 12:36:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:11,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:11,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558595123] [2020-12-03 12:36:11,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:11,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-03 12:36:11,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366745449] [2020-12-03 12:36:11,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-03 12:36:11,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:11,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-03 12:36:11,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:36:11,920 INFO L87 Difference]: Start difference. First operand 234 states and 284 transitions. Second operand 8 states. [2020-12-03 12:36:12,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:12,078 INFO L93 Difference]: Finished difference Result 238 states and 285 transitions. [2020-12-03 12:36:12,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-03 12:36:12,079 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-12-03 12:36:12,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:12,080 INFO L225 Difference]: With dead ends: 238 [2020-12-03 12:36:12,080 INFO L226 Difference]: Without dead ends: 213 [2020-12-03 12:36:12,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-12-03 12:36:12,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-12-03 12:36:12,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 119. [2020-12-03 12:36:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-03 12:36:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-12-03 12:36:12,084 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 42 [2020-12-03 12:36:12,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:12,084 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-12-03 12:36:12,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-03 12:36:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-12-03 12:36:12,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-03 12:36:12,085 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:12,085 INFO L422 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] [2020-12-03 12:36:12,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-03 12:36:12,086 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:12,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:12,086 INFO L82 PathProgramCache]: Analyzing trace with hash -419163354, now seen corresponding path program 1 times [2020-12-03 12:36:12,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:12,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150892252] [2020-12-03 12:36:12,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:12,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150892252] [2020-12-03 12:36:12,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:12,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:12,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610648197] [2020-12-03 12:36:12,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:12,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:12,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:12,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:12,152 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 5 states. [2020-12-03 12:36:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:12,318 INFO L93 Difference]: Finished difference Result 168 states and 188 transitions. [2020-12-03 12:36:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:36:12,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-12-03 12:36:12,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:12,319 INFO L225 Difference]: With dead ends: 168 [2020-12-03 12:36:12,319 INFO L226 Difference]: Without dead ends: 166 [2020-12-03 12:36:12,320 INFO L677 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 [2020-12-03 12:36:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-12-03 12:36:12,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 108. [2020-12-03 12:36:12,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-03 12:36:12,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2020-12-03 12:36:12,322 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 51 [2020-12-03 12:36:12,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:12,322 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2020-12-03 12:36:12,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:12,323 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2020-12-03 12:36:12,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-03 12:36:12,323 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:12,323 INFO L422 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] [2020-12-03 12:36:12,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-03 12:36:12,324 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:12,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:12,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1859394806, now seen corresponding path program 1 times [2020-12-03 12:36:12,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:12,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718135487] [2020-12-03 12:36:12,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:12,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:12,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718135487] [2020-12-03 12:36:12,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:12,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:12,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107973194] [2020-12-03 12:36:12,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:12,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:12,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:12,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:12,424 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 5 states. [2020-12-03 12:36:12,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:12,604 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2020-12-03 12:36:12,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:36:12,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2020-12-03 12:36:12,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:12,606 INFO L225 Difference]: With dead ends: 150 [2020-12-03 12:36:12,606 INFO L226 Difference]: Without dead ends: 148 [2020-12-03 12:36:12,607 INFO L677 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 [2020-12-03 12:36:12,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-03 12:36:12,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 99. [2020-12-03 12:36:12,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-03 12:36:12,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2020-12-03 12:36:12,610 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 63 [2020-12-03 12:36:12,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:12,611 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2020-12-03 12:36:12,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:12,611 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2020-12-03 12:36:12,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-03 12:36:12,613 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:12,613 INFO L422 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] [2020-12-03 12:36:12,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-03 12:36:12,615 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:36:12,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:12,616 INFO L82 PathProgramCache]: Analyzing trace with hash -26253864, now seen corresponding path program 1 times [2020-12-03 12:36:12,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:12,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661611104] [2020-12-03 12:36:12,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:12,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661611104] [2020-12-03 12:36:12,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:12,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:12,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219039577] [2020-12-03 12:36:12,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:12,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:12,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:12,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:12,724 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 5 states. [2020-12-03 12:36:12,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:12,873 INFO L93 Difference]: Finished difference Result 132 states and 146 transitions. [2020-12-03 12:36:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:36:12,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-12-03 12:36:12,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:12,874 INFO L225 Difference]: With dead ends: 132 [2020-12-03 12:36:12,875 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:36:12,875 INFO L677 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 [2020-12-03 12:36:12,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:36:12,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:36:12,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:36:12,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:36:12,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2020-12-03 12:36:12,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:12,876 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:36:12,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:12,876 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:36:12,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:36:12,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-03 12:36:12,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:36:12 BoogieIcfgContainer [2020-12-03 12:36:12,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:36:12,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:36:12,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:36:12,882 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:36:12,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:01" (3/4) ... [2020-12-03 12:36:12,886 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:36:12,933 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 279 nodes and edges [2020-12-03 12:36:12,939 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2020-12-03 12:36:12,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-03 12:36:12,951 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-03 12:36:13,252 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9cade05d-d2d4-44e0-b657-08e749c6a051/bin/utaipan/witness.graphml [2020-12-03 12:36:13,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:36:13,255 INFO L168 Benchmark]: Toolchain (without parser) took 16439.22 ms. Allocated memory was 90.2 MB in the beginning and 312.5 MB in the end (delta: 222.3 MB). Free memory was 53.9 MB in the beginning and 148.5 MB in the end (delta: -94.6 MB). Peak memory consumption was 127.0 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:13,255 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 70.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:13,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.21 ms. Allocated memory is still 90.2 MB. Free memory was 53.7 MB in the beginning and 55.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:13,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.60 ms. Allocated memory is still 90.2 MB. Free memory was 55.0 MB in the beginning and 43.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:13,257 INFO L168 Benchmark]: Boogie Preprocessor took 115.25 ms. Allocated memory is still 90.2 MB. Free memory was 43.8 MB in the beginning and 36.7 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:13,257 INFO L168 Benchmark]: RCFGBuilder took 3915.17 ms. Allocated memory was 90.2 MB in the beginning and 174.1 MB in the end (delta: 83.9 MB). Free memory was 36.7 MB in the beginning and 85.3 MB in the end (delta: -48.6 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:13,257 INFO L168 Benchmark]: TraceAbstraction took 11181.21 ms. Allocated memory was 174.1 MB in the beginning and 312.5 MB in the end (delta: 138.4 MB). Free memory was 85.3 MB in the beginning and 195.7 MB in the end (delta: -110.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:13,258 INFO L168 Benchmark]: Witness Printer took 370.58 ms. Allocated memory is still 312.5 MB. Free memory was 195.7 MB in the beginning and 148.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:13,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 70.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 705.21 ms. Allocated memory is still 90.2 MB. Free memory was 53.7 MB in the beginning and 55.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 145.60 ms. Allocated memory is still 90.2 MB. Free memory was 55.0 MB in the beginning and 43.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.25 ms. Allocated memory is still 90.2 MB. Free memory was 43.8 MB in the beginning and 36.7 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3915.17 ms. Allocated memory was 90.2 MB in the beginning and 174.1 MB in the end (delta: 83.9 MB). Free memory was 36.7 MB in the beginning and 85.3 MB in the end (delta: -48.6 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11181.21 ms. Allocated memory was 174.1 MB in the beginning and 312.5 MB in the end (delta: 138.4 MB). Free memory was 85.3 MB in the beginning and 195.7 MB in the end (delta: -110.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * Witness Printer took 370.58 ms. Allocated memory is still 312.5 MB. Free memory was 195.7 MB in the beginning and 148.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - 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 - AllSpecificationsHoldResult: All specifications hold 52 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 365 locations, 52 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.1s, OverallIterations: 41, TraceHistogramMax: 1, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12040 SDtfs, 10188 SDslu, 13611 SDs, 0 SdLazy, 3719 SolverSat, 574 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=732occurred in iteration=8, 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, 41 MinimizatonAttempts, 2476 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1031 NumberOfCodeBlocks, 1031 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 990 ConstructedInterpolants, 0 QuantifiedInterpolants, 90126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...