/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:24:56,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:24:56,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:24:56,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:24:56,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:24:56,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:24:56,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:24:56,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:24:56,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:24:56,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:24:56,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:24:56,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:24:56,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:24:56,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:24:56,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:24:56,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:24:56,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:24:56,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:24:56,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:24:56,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:24:56,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:24:56,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:24:56,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:24:56,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:24:56,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 19:24:56,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 19:24:56,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 19:24:56,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 19:24:56,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 19:24:56,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 19:24:56,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:24:56,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:24:56,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:24:56,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:24:56,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:24:56,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:24:56,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:24:56,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:24:56,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:24:56,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:24:56,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:24:56,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:24:56,614 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:24:56,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:24:56,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:24:56,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:24:56,616 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:24:56,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:24:56,617 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:24:56,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:24:56,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:24:56,617 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:24:56,617 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:24:56,617 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:24:56,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:24:56,618 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:24:56,618 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:24:56,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:24:56,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:24:56,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:24:56,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:24:56,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:24:56,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:24:56,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:24:56,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:24:56,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:24:56,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:24:57,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:24:57,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:24:57,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:24:57,048 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:24:57,050 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:24:57,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2020-12-22 19:24:57,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557f68d5c/231faeae87534e5ab38e3cbaab7911a9/FLAGa2f4609be [2020-12-22 19:24:57,794 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:24:57,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2020-12-22 19:24:57,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557f68d5c/231faeae87534e5ab38e3cbaab7911a9/FLAGa2f4609be [2020-12-22 19:24:58,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557f68d5c/231faeae87534e5ab38e3cbaab7911a9 [2020-12-22 19:24:58,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:24:58,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:24:58,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:24:58,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:24:58,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:24:58,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423e9657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58, skipping insertion in model container [2020-12-22 19:24:58,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:24:58,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:24:58,485 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2020-12-22 19:24:58,491 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2020-12-22 19:24:58,496 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2020-12-22 19:24:58,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:24:58,526 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:24:58,588 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2020-12-22 19:24:58,589 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2020-12-22 19:24:58,591 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2020-12-22 19:24:58,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:24:58,667 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:24:58,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58 WrapperNode [2020-12-22 19:24:58,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:24:58,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:24:58,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:24:58,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:24:58,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:24:58,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:24:58,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:24:58,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:24:58,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... [2020-12-22 19:24:58,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:24:58,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:24:58,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:24:58,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:24:58,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-12-22 19:24:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 19:24:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 19:24:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 19:24:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 19:24:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:24:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 19:24:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 19:24:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 19:24:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:24:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:24:59,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:24:59,838 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-22 19:24:59,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:24:59 BoogieIcfgContainer [2020-12-22 19:24:59,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:24:59,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:24:59,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:24:59,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:24:59,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:24:58" (1/3) ... [2020-12-22 19:24:59,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14baf8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:24:59, skipping insertion in model container [2020-12-22 19:24:59,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:24:58" (2/3) ... [2020-12-22 19:24:59,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14baf8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:24:59, skipping insertion in model container [2020-12-22 19:24:59,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:24:59" (3/3) ... [2020-12-22 19:24:59,850 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-2.i [2020-12-22 19:24:59,857 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:24:59,867 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2020-12-22 19:24:59,888 INFO L253 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2020-12-22 19:24:59,908 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:24:59,909 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:24:59,909 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:24:59,909 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:24:59,909 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:24:59,909 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:24:59,909 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:24:59,910 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:24:59,930 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-12-22 19:24:59,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 19:24:59,936 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:24:59,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 19:24:59,937 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:24:59,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:24:59,948 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-22 19:24:59,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:24:59,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208141768] [2020-12-22 19:24:59,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:25:00,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:25:00,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208141768] [2020-12-22 19:25:00,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:25:00,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:25:00,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357960903] [2020-12-22 19:25:00,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:25:00,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:25:00,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:25:00,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:25:00,261 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 3 states. [2020-12-22 19:25:00,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:25:00,508 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2020-12-22 19:25:00,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:25:00,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 19:25:00,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:25:00,524 INFO L225 Difference]: With dead ends: 121 [2020-12-22 19:25:00,525 INFO L226 Difference]: Without dead ends: 117 [2020-12-22 19:25:00,536 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 [2020-12-22 19:25:00,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-12-22 19:25:00,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2020-12-22 19:25:00,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-12-22 19:25:00,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 120 transitions. [2020-12-22 19:25:00,614 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 120 transitions. Word has length 3 [2020-12-22 19:25:00,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:25:00,615 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 120 transitions. [2020-12-22 19:25:00,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:25:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 120 transitions. [2020-12-22 19:25:00,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 19:25:00,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:25:00,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 19:25:00,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:25:00,617 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:25:00,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:25:00,620 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-22 19:25:00,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:25:00,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305332333] [2020-12-22 19:25:00,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:25:00,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:25:00,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305332333] [2020-12-22 19:25:00,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:25:00,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:25:00,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158717202] [2020-12-22 19:25:00,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:25:00,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:25:00,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:25:00,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:25:00,726 INFO L87 Difference]: Start difference. First operand 113 states and 120 transitions. Second operand 3 states. [2020-12-22 19:25:00,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:25:00,935 INFO L93 Difference]: Finished difference Result 131 states and 137 transitions. [2020-12-22 19:25:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:25:00,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 19:25:00,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:25:00,944 INFO L225 Difference]: With dead ends: 131 [2020-12-22 19:25:00,945 INFO L226 Difference]: Without dead ends: 131 [2020-12-22 19:25:00,946 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 [2020-12-22 19:25:00,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-22 19:25:00,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 118. [2020-12-22 19:25:00,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-12-22 19:25:00,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 125 transitions. [2020-12-22 19:25:00,971 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 125 transitions. Word has length 3 [2020-12-22 19:25:00,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:25:00,973 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 125 transitions. [2020-12-22 19:25:00,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:25:00,974 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 125 transitions. [2020-12-22 19:25:00,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 19:25:00,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:25:00,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:25:00,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:25:00,976 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:25:00,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:25:00,977 INFO L82 PathProgramCache]: Analyzing trace with hash 59263661, now seen corresponding path program 1 times [2020-12-22 19:25:00,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:25:00,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118444380] [2020-12-22 19:25:00,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:25:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:25:01,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118444380] [2020-12-22 19:25:01,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:25:01,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:25:01,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195675873] [2020-12-22 19:25:01,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:25:01,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:25:01,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:25:01,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:25:01,074 INFO L87 Difference]: Start difference. First operand 118 states and 125 transitions. Second operand 4 states. [2020-12-22 19:25:01,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:25:01,261 INFO L93 Difference]: Finished difference Result 125 states and 133 transitions. [2020-12-22 19:25:01,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:25:01,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-22 19:25:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:25:01,263 INFO L225 Difference]: With dead ends: 125 [2020-12-22 19:25:01,263 INFO L226 Difference]: Without dead ends: 125 [2020-12-22 19:25:01,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:25:01,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-12-22 19:25:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 110. [2020-12-22 19:25:01,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-22 19:25:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2020-12-22 19:25:01,272 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 8 [2020-12-22 19:25:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:25:01,273 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2020-12-22 19:25:01,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:25:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2020-12-22 19:25:01,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 19:25:01,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:25:01,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:25:01,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 19:25:01,275 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:25:01,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:25:01,276 INFO L82 PathProgramCache]: Analyzing trace with hash 59263662, now seen corresponding path program 1 times [2020-12-22 19:25:01,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:25:01,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219740221] [2020-12-22 19:25:01,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:25:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:25:01,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219740221] [2020-12-22 19:25:01,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:25:01,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:25:01,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269689764] [2020-12-22 19:25:01,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:25:01,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:25:01,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:25:01,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:25:01,371 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand 6 states. [2020-12-22 19:25:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:25:01,674 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2020-12-22 19:25:01,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:25:01,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-12-22 19:25:01,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:25:01,676 INFO L225 Difference]: With dead ends: 148 [2020-12-22 19:25:01,676 INFO L226 Difference]: Without dead ends: 148 [2020-12-22 19:25:01,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:25:01,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-22 19:25:01,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 119. [2020-12-22 19:25:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-22 19:25:01,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 131 transitions. [2020-12-22 19:25:01,698 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 131 transitions. Word has length 8 [2020-12-22 19:25:01,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:25:01,703 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 131 transitions. [2020-12-22 19:25:01,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:25:01,703 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 131 transitions. [2020-12-22 19:25:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 19:25:01,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:25:01,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:25:01,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 19:25:01,705 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:25:01,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:25:01,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1117783383, now seen corresponding path program 1 times [2020-12-22 19:25:01,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:25:01,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291501235] [2020-12-22 19:25:01,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:25:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:25:01,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291501235] [2020-12-22 19:25:01,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:25:01,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:25:01,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932069531] [2020-12-22 19:25:01,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:25:01,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:25:01,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:25:01,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:25:01,793 INFO L87 Difference]: Start difference. First operand 119 states and 131 transitions. Second operand 4 states. [2020-12-22 19:25:01,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:25:01,925 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2020-12-22 19:25:01,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:25:01,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 19:25:01,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:25:01,927 INFO L225 Difference]: With dead ends: 133 [2020-12-22 19:25:01,927 INFO L226 Difference]: Without dead ends: 133 [2020-12-22 19:25:01,928 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 [2020-12-22 19:25:01,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-22 19:25:01,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 117. [2020-12-22 19:25:01,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-22 19:25:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2020-12-22 19:25:01,948 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 10 [2020-12-22 19:25:01,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:25:01,949 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2020-12-22 19:25:01,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:25:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2020-12-22 19:25:01,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 19:25:01,954 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:25:01,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:25:01,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 19:25:01,954 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:25:01,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:25:01,955 INFO L82 PathProgramCache]: Analyzing trace with hash 292159341, now seen corresponding path program 1 times [2020-12-22 19:25:01,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:25:01,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028455888] [2020-12-22 19:25:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:25:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:25:02,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028455888] [2020-12-22 19:25:02,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:25:02,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:25:02,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322345498] [2020-12-22 19:25:02,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:25:02,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:25:02,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:25:02,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:25:02,065 INFO L87 Difference]: Start difference. First operand 117 states and 127 transitions. Second operand 6 states. [2020-12-22 19:25:02,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:25:02,394 INFO L93 Difference]: Finished difference Result 172 states and 186 transitions. [2020-12-22 19:25:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:25:02,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 19:25:02,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:25:02,396 INFO L225 Difference]: With dead ends: 172 [2020-12-22 19:25:02,396 INFO L226 Difference]: Without dead ends: 172 [2020-12-22 19:25:02,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:25:02,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-22 19:25:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 116. [2020-12-22 19:25:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-12-22 19:25:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2020-12-22 19:25:02,408 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 11 [2020-12-22 19:25:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:25:02,408 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2020-12-22 19:25:02,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:25:02,413 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2020-12-22 19:25:02,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 19:25:02,414 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:25:02,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:25:02,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 19:25:02,418 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:25:02,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:25:02,419 INFO L82 PathProgramCache]: Analyzing trace with hash 292159342, now seen corresponding path program 1 times [2020-12-22 19:25:02,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:25:02,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581573234] [2020-12-22 19:25:02,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:25:02,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:25:02,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581573234] [2020-12-22 19:25:02,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:25:02,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:25:02,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265742929] [2020-12-22 19:25:02,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:25:02,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:25:02,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:25:02,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:25:02,547 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand 6 states. [2020-12-22 19:25:02,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:25:02,943 INFO L93 Difference]: Finished difference Result 198 states and 216 transitions. [2020-12-22 19:25:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:25:02,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 19:25:02,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:25:02,945 INFO L225 Difference]: With dead ends: 198 [2020-12-22 19:25:02,946 INFO L226 Difference]: Without dead ends: 198 [2020-12-22 19:25:02,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:25:02,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-12-22 19:25:02,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 111. [2020-12-22 19:25:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-12-22 19:25:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2020-12-22 19:25:02,950 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 11 [2020-12-22 19:25:02,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:25:02,950 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2020-12-22 19:25:02,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:25:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2020-12-22 19:25:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 19:25:02,951 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:25:02,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:25:02,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 19:25:02,951 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:25:02,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:25:02,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1007300280, now seen corresponding path program 1 times [2020-12-22 19:25:02,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:25:02,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936968031] [2020-12-22 19:25:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:25:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:25:03,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936968031] [2020-12-22 19:25:03,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:25:03,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 19:25:03,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454999678] [2020-12-22 19:25:03,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:25:03,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:25:03,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:25:03,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:25:03,029 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand 6 states. [2020-12-22 19:25:03,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:25:03,300 INFO L93 Difference]: Finished difference Result 174 states and 190 transitions. [2020-12-22 19:25:03,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:25:03,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-22 19:25:03,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:25:03,302 INFO L225 Difference]: With dead ends: 174 [2020-12-22 19:25:03,302 INFO L226 Difference]: Without dead ends: 174 [2020-12-22 19:25:03,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:25:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-12-22 19:25:03,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 118. [2020-12-22 19:25:03,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-12-22 19:25:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 129 transitions. [2020-12-22 19:25:03,307 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 129 transitions. Word has length 13 [2020-12-22 19:25:03,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:25:03,307 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 129 transitions. [2020-12-22 19:25:03,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:25:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 129 transitions. [2020-12-22 19:25:03,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 19:25:03,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:25:03,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:25:03,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 19:25:03,309 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:25:03,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:25:03,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1116423169, now seen corresponding path program 1 times [2020-12-22 19:25:03,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:25:03,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788462679] [2020-12-22 19:25:03,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:25:03,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:25:03,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788462679] [2020-12-22 19:25:03,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:25:03,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:25:03,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39147931] [2020-12-22 19:25:03,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:25:03,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:25:03,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:25:03,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:25:03,403 INFO L87 Difference]: Start difference. First operand 118 states and 129 transitions. Second operand 5 states. [2020-12-22 19:25:03,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:25:03,563 INFO L93 Difference]: Finished difference Result 123 states and 132 transitions. [2020-12-22 19:25:03,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:25:03,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-12-22 19:25:03,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:25:03,565 INFO L225 Difference]: With dead ends: 123 [2020-12-22 19:25:03,565 INFO L226 Difference]: Without dead ends: 123 [2020-12-22 19:25:03,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:25:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-12-22 19:25:03,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 117. [2020-12-22 19:25:03,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-22 19:25:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2020-12-22 19:25:03,569 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 19 [2020-12-22 19:25:03,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:25:03,569 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2020-12-22 19:25:03,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:25:03,569 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2020-12-22 19:25:03,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 19:25:03,570 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:25:03,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:25:03,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 19:25:03,571 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:25:03,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:25:03,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1116112287, now seen corresponding path program 1 times [2020-12-22 19:25:03,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:25:03,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364637141] [2020-12-22 19:25:03,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:25:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 19:25:03,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 19:25:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 19:25:03,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 19:25:03,620 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 19:25:03,621 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 19:25:03,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 19:25:03,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 07:25:03 BoogieIcfgContainer [2020-12-22 19:25:03,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 19:25:03,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 19:25:03,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 19:25:03,653 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 19:25:03,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:24:59" (3/4) ... [2020-12-22 19:25:03,656 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 19:25:03,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 19:25:03,658 INFO L168 Benchmark]: Toolchain (without parser) took 5572.45 ms. Allocated memory was 156.2 MB in the beginning and 209.7 MB in the end (delta: 53.5 MB). Free memory was 129.6 MB in the beginning and 122.2 MB in the end (delta: 7.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 8.0 GB. [2020-12-22 19:25:03,659 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory is still 129.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:25:03,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.70 ms. Allocated memory is still 156.2 MB. Free memory was 129.4 MB in the beginning and 106.6 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 19:25:03,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.89 ms. Allocated memory is still 156.2 MB. Free memory was 106.6 MB in the beginning and 104.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:25:03,661 INFO L168 Benchmark]: Boogie Preprocessor took 58.90 ms. Allocated memory is still 156.2 MB. Free memory was 104.6 MB in the beginning and 102.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:25:03,661 INFO L168 Benchmark]: RCFGBuilder took 996.52 ms. Allocated memory is still 156.2 MB. Free memory was 102.9 MB in the beginning and 103.5 MB in the end (delta: -674.9 kB). Peak memory consumption was 2.9 MB. Max. memory is 8.0 GB. [2020-12-22 19:25:03,662 INFO L168 Benchmark]: TraceAbstraction took 3809.57 ms. Allocated memory was 156.2 MB in the beginning and 209.7 MB in the end (delta: 53.5 MB). Free memory was 103.0 MB in the beginning and 122.2 MB in the end (delta: -19.2 MB). Peak memory consumption was 35.3 MB. Max. memory is 8.0 GB. [2020-12-22 19:25:03,663 INFO L168 Benchmark]: Witness Printer took 3.91 ms. Allocated memory is still 209.7 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:25:03,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory is still 129.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 576.70 ms. Allocated memory is still 156.2 MB. Free memory was 129.4 MB in the beginning and 106.6 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 112.89 ms. Allocated memory is still 156.2 MB. Free memory was 106.6 MB in the beginning and 104.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.90 ms. Allocated memory is still 156.2 MB. Free memory was 104.6 MB in the beginning and 102.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 996.52 ms. Allocated memory is still 156.2 MB. Free memory was 102.9 MB in the beginning and 103.5 MB in the end (delta: -674.9 kB). Peak memory consumption was 2.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3809.57 ms. Allocated memory was 156.2 MB in the beginning and 209.7 MB in the end (delta: 53.5 MB). Free memory was 103.0 MB in the beginning and 122.2 MB in the end (delta: -19.2 MB). Peak memory consumption was 35.3 MB. Max. memory is 8.0 GB. * Witness Printer took 3.91 ms. Allocated memory is still 209.7 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1049]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1049. Possible FailurePath: [L1006] SLL* list = malloc(sizeof(SLL)); [L1007] list->next = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1034] end = ((void*)0) [L1035] end = list [L1038] COND FALSE !(!(((void*)0) != end)) [L1039] EXPR end->colour [L1039] COND FALSE !(!(BLACK == end->colour)) [L1041] COND TRUE ((void*)0) != end [L1043] EXPR end->colour [L1043] COND FALSE !(RED == end->colour) [L1049] EXPR end->next [L1049] COND TRUE !(end->next) [L1049] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 55 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 676 SDtfs, 1180 SDslu, 949 SDs, 0 SdLazy, 1502 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 282 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 3860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...