/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/ntdrivers-simplified/kbfiltr_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:42:24,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:42:24,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:42:24,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:42:24,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:42:24,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:42:24,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:42:24,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:42:24,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:42:24,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:42:24,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:42:24,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:42:24,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:42:24,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:42:24,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:42:24,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:42:24,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:42:24,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:42:24,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:42:24,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:42:24,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:42:24,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:42:24,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:42:24,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:42:24,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 19:42:24,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 19:42:24,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 19:42:24,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 19:42:24,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 19:42:24,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 19:42:24,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:42:24,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:42:24,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:42:24,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:42:24,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:42:24,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:42:24,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:42:24,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:42:24,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:42:24,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:42:24,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:42:24,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:42:24,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:42:24,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:42:24,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:42:24,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:42:24,319 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:42:24,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:42:24,320 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:42:24,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:42:24,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:42:24,321 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:42:24,321 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:42:24,321 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:42:24,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:42:24,322 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:42:24,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:42:24,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:42:24,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:42:24,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:42:24,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:42:24,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:42:24,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:42:24,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:42:24,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:42:24,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:42:24,325 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:42:24,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:42:24,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:42:24,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:42:24,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:42:24,767 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:42:24,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-12-22 19:42:24,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f58b4e3b/e77f7a0f29084779ab1db4547f7cf6ce/FLAGc2f04970c [2020-12-22 19:42:25,517 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:42:25,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-12-22 19:42:25,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f58b4e3b/e77f7a0f29084779ab1db4547f7cf6ce/FLAGc2f04970c [2020-12-22 19:42:25,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f58b4e3b/e77f7a0f29084779ab1db4547f7cf6ce [2020-12-22 19:42:25,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:42:25,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:42:25,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:42:25,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:42:25,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:42:25,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:42:25" (1/1) ... [2020-12-22 19:42:25,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e04272a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:25, skipping insertion in model container [2020-12-22 19:42:25,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:42:25" (1/1) ... [2020-12-22 19:42:25,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:42:25,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:42:26,342 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/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2020-12-22 19:42:26,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:42:26,360 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:42:26,469 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/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2020-12-22 19:42:26,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:42:26,495 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:42:26,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26 WrapperNode [2020-12-22 19:42:26,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:42:26,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:42:26,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:42:26,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:42:26,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (1/1) ... [2020-12-22 19:42:26,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (1/1) ... [2020-12-22 19:42:26,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:42:26,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:42:26,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:42:26,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:42:26,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (1/1) ... [2020-12-22 19:42:26,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (1/1) ... [2020-12-22 19:42:26,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (1/1) ... [2020-12-22 19:42:26,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (1/1) ... [2020-12-22 19:42:26,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (1/1) ... [2020-12-22 19:42:26,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (1/1) ... [2020-12-22 19:42:26,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (1/1) ... [2020-12-22 19:42:26,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:42:26,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:42:26,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:42:26,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:42:26,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (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 19:42:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 19:42:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:42:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:42:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:42:27,078 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 19:42:27,089 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 19:42:27,095 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 19:42:27,103 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 19:42:27,113 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 19:42:27,121 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 19:42:27,127 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 19:42:27,769 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2020-12-22 19:42:27,770 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2020-12-22 19:42:27,770 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##184: assume false; [2020-12-22 19:42:27,770 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##185: assume !false; [2020-12-22 19:42:27,770 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !false; [2020-12-22 19:42:27,771 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume false; [2020-12-22 19:42:27,771 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2020-12-22 19:42:27,771 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2020-12-22 19:42:27,772 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-12-22 19:42:27,772 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-12-22 19:42:27,772 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2020-12-22 19:42:27,772 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2020-12-22 19:42:27,773 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2020-12-22 19:42:27,773 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2020-12-22 19:42:27,785 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:42:27,786 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2020-12-22 19:42:27,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:42:27 BoogieIcfgContainer [2020-12-22 19:42:27,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:42:27,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:42:27,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:42:27,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:42:27,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:42:25" (1/3) ... [2020-12-22 19:42:27,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380d599c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:42:27, skipping insertion in model container [2020-12-22 19:42:27,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:42:26" (2/3) ... [2020-12-22 19:42:27,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380d599c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:42:27, skipping insertion in model container [2020-12-22 19:42:27,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:42:27" (3/3) ... [2020-12-22 19:42:27,800 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-12-22 19:42:27,808 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:42:27,814 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-12-22 19:42:27,836 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-12-22 19:42:27,861 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:42:27,861 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:42:27,861 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:42:27,862 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:42:27,862 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:42:27,862 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:42:27,862 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:42:27,862 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:42:27,893 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-12-22 19:42:27,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 19:42:27,904 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:27,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:27,907 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:27,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:27,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1952724742, now seen corresponding path program 1 times [2020-12-22 19:42:27,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:27,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647792446] [2020-12-22 19:42:27,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:28,166 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 19:42:28,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647792446] [2020-12-22 19:42:28,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:28,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:42:28,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883685138] [2020-12-22 19:42:28,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:28,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:28,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:28,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:28,198 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 3 states. [2020-12-22 19:42:28,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:28,263 INFO L93 Difference]: Finished difference Result 178 states and 244 transitions. [2020-12-22 19:42:28,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:28,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-22 19:42:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:28,282 INFO L225 Difference]: With dead ends: 178 [2020-12-22 19:42:28,283 INFO L226 Difference]: Without dead ends: 174 [2020-12-22 19:42:28,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 19:42:28,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-12-22 19:42:28,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2020-12-22 19:42:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-22 19:42:28,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 239 transitions. [2020-12-22 19:42:28,342 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 239 transitions. Word has length 7 [2020-12-22 19:42:28,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:28,343 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 239 transitions. [2020-12-22 19:42:28,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 239 transitions. [2020-12-22 19:42:28,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 19:42:28,344 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:28,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:28,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:42:28,345 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:28,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:28,346 INFO L82 PathProgramCache]: Analyzing trace with hash 148044484, now seen corresponding path program 1 times [2020-12-22 19:42:28,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:28,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038276150] [2020-12-22 19:42:28,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:28,462 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 19:42:28,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038276150] [2020-12-22 19:42:28,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:28,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:42:28,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438165351] [2020-12-22 19:42:28,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:28,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:28,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:28,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:28,470 INFO L87 Difference]: Start difference. First operand 172 states and 239 transitions. Second operand 3 states. [2020-12-22 19:42:28,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:28,508 INFO L93 Difference]: Finished difference Result 172 states and 238 transitions. [2020-12-22 19:42:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:28,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 19:42:28,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:28,515 INFO L225 Difference]: With dead ends: 172 [2020-12-22 19:42:28,516 INFO L226 Difference]: Without dead ends: 172 [2020-12-22 19:42:28,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:28,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-22 19:42:28,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-12-22 19:42:28,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-22 19:42:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 238 transitions. [2020-12-22 19:42:28,545 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 238 transitions. Word has length 8 [2020-12-22 19:42:28,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:28,546 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 238 transitions. [2020-12-22 19:42:28,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:28,546 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 238 transitions. [2020-12-22 19:42:28,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 19:42:28,547 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:28,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:28,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:42:28,547 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:28,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:28,548 INFO L82 PathProgramCache]: Analyzing trace with hash 536303501, now seen corresponding path program 1 times [2020-12-22 19:42:28,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:28,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802271119] [2020-12-22 19:42:28,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:28,599 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 19:42:28,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802271119] [2020-12-22 19:42:28,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:28,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:42:28,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340300898] [2020-12-22 19:42:28,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:28,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:28,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:28,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:28,602 INFO L87 Difference]: Start difference. First operand 172 states and 238 transitions. Second operand 3 states. [2020-12-22 19:42:28,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:28,626 INFO L93 Difference]: Finished difference Result 171 states and 237 transitions. [2020-12-22 19:42:28,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:28,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 19:42:28,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:28,634 INFO L225 Difference]: With dead ends: 171 [2020-12-22 19:42:28,635 INFO L226 Difference]: Without dead ends: 165 [2020-12-22 19:42:28,635 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 19:42:28,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-12-22 19:42:28,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-12-22 19:42:28,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-12-22 19:42:28,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 221 transitions. [2020-12-22 19:42:28,650 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 221 transitions. Word has length 10 [2020-12-22 19:42:28,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:28,650 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 221 transitions. [2020-12-22 19:42:28,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:28,651 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 221 transitions. [2020-12-22 19:42:28,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 19:42:28,651 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:28,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:28,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 19:42:28,671 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:28,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:28,672 INFO L82 PathProgramCache]: Analyzing trace with hash -825827361, now seen corresponding path program 1 times [2020-12-22 19:42:28,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:28,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568743986] [2020-12-22 19:42:28,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:28,783 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 19:42:28,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568743986] [2020-12-22 19:42:28,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:28,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:42:28,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371118492] [2020-12-22 19:42:28,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:28,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:28,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:28,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:28,787 INFO L87 Difference]: Start difference. First operand 165 states and 221 transitions. Second operand 3 states. [2020-12-22 19:42:28,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:28,906 INFO L93 Difference]: Finished difference Result 201 states and 268 transitions. [2020-12-22 19:42:28,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:28,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-22 19:42:28,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:28,909 INFO L225 Difference]: With dead ends: 201 [2020-12-22 19:42:28,909 INFO L226 Difference]: Without dead ends: 200 [2020-12-22 19:42:28,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-22 19:42:28,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2020-12-22 19:42:28,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-22 19:42:28,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 253 transitions. [2020-12-22 19:42:28,920 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 253 transitions. Word has length 13 [2020-12-22 19:42:28,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:28,921 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 253 transitions. [2020-12-22 19:42:28,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:28,921 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 253 transitions. [2020-12-22 19:42:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 19:42:28,922 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:28,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:28,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 19:42:28,923 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:28,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:28,924 INFO L82 PathProgramCache]: Analyzing trace with hash 169161723, now seen corresponding path program 1 times [2020-12-22 19:42:28,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:28,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350712234] [2020-12-22 19:42:28,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:28,983 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 19:42:28,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350712234] [2020-12-22 19:42:28,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:28,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:42:28,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271459829] [2020-12-22 19:42:28,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:28,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:28,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:28,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:28,990 INFO L87 Difference]: Start difference. First operand 187 states and 253 transitions. Second operand 3 states. [2020-12-22 19:42:29,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:29,020 INFO L93 Difference]: Finished difference Result 214 states and 290 transitions. [2020-12-22 19:42:29,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:29,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-12-22 19:42:29,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:29,022 INFO L225 Difference]: With dead ends: 214 [2020-12-22 19:42:29,022 INFO L226 Difference]: Without dead ends: 214 [2020-12-22 19:42:29,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-12-22 19:42:29,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 170. [2020-12-22 19:42:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-12-22 19:42:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 233 transitions. [2020-12-22 19:42:29,041 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 233 transitions. Word has length 14 [2020-12-22 19:42:29,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:29,041 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 233 transitions. [2020-12-22 19:42:29,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:29,041 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 233 transitions. [2020-12-22 19:42:29,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 19:42:29,043 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:29,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:29,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 19:42:29,044 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:29,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:29,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1790313284, now seen corresponding path program 1 times [2020-12-22 19:42:29,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:29,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055087934] [2020-12-22 19:42:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:29,095 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 19:42:29,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055087934] [2020-12-22 19:42:29,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:29,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:42:29,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603997626] [2020-12-22 19:42:29,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:29,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:29,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:29,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:29,098 INFO L87 Difference]: Start difference. First operand 170 states and 233 transitions. Second operand 3 states. [2020-12-22 19:42:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:29,164 INFO L93 Difference]: Finished difference Result 164 states and 227 transitions. [2020-12-22 19:42:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:29,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-22 19:42:29,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:29,166 INFO L225 Difference]: With dead ends: 164 [2020-12-22 19:42:29,166 INFO L226 Difference]: Without dead ends: 164 [2020-12-22 19:42:29,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:29,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-12-22 19:42:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-12-22 19:42:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-22 19:42:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 227 transitions. [2020-12-22 19:42:29,172 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 227 transitions. Word has length 22 [2020-12-22 19:42:29,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:29,172 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 227 transitions. [2020-12-22 19:42:29,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:29,173 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 227 transitions. [2020-12-22 19:42:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 19:42:29,174 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:29,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:29,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 19:42:29,175 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:29,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:29,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1900059442, now seen corresponding path program 1 times [2020-12-22 19:42:29,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:29,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363168746] [2020-12-22 19:42:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:29,225 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 19:42:29,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363168746] [2020-12-22 19:42:29,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:29,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:42:29,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612995359] [2020-12-22 19:42:29,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:29,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:29,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:29,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:29,228 INFO L87 Difference]: Start difference. First operand 164 states and 227 transitions. Second operand 3 states. [2020-12-22 19:42:29,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:29,286 INFO L93 Difference]: Finished difference Result 161 states and 223 transitions. [2020-12-22 19:42:29,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:29,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 19:42:29,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:29,288 INFO L225 Difference]: With dead ends: 161 [2020-12-22 19:42:29,288 INFO L226 Difference]: Without dead ends: 161 [2020-12-22 19:42:29,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:29,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-12-22 19:42:29,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-12-22 19:42:29,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-12-22 19:42:29,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 223 transitions. [2020-12-22 19:42:29,293 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 223 transitions. Word has length 25 [2020-12-22 19:42:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:29,294 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 223 transitions. [2020-12-22 19:42:29,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:29,294 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 223 transitions. [2020-12-22 19:42:29,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 19:42:29,296 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:29,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:29,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 19:42:29,296 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:29,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:29,297 INFO L82 PathProgramCache]: Analyzing trace with hash 88593490, now seen corresponding path program 1 times [2020-12-22 19:42:29,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:29,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942902263] [2020-12-22 19:42:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:29,339 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 19:42:29,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942902263] [2020-12-22 19:42:29,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:29,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:42:29,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162745464] [2020-12-22 19:42:29,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:42:29,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:29,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:42:29,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:42:29,341 INFO L87 Difference]: Start difference. First operand 161 states and 223 transitions. Second operand 4 states. [2020-12-22 19:42:29,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:29,367 INFO L93 Difference]: Finished difference Result 169 states and 231 transitions. [2020-12-22 19:42:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:42:29,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-22 19:42:29,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:29,368 INFO L225 Difference]: With dead ends: 169 [2020-12-22 19:42:29,369 INFO L226 Difference]: Without dead ends: 169 [2020-12-22 19:42:29,369 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 19:42:29,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-12-22 19:42:29,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 154. [2020-12-22 19:42:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-22 19:42:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 213 transitions. [2020-12-22 19:42:29,374 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 213 transitions. Word has length 26 [2020-12-22 19:42:29,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:29,374 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 213 transitions. [2020-12-22 19:42:29,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:42:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 213 transitions. [2020-12-22 19:42:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 19:42:29,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:29,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:29,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 19:42:29,376 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:29,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:29,377 INFO L82 PathProgramCache]: Analyzing trace with hash 721476524, now seen corresponding path program 1 times [2020-12-22 19:42:29,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:29,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222588337] [2020-12-22 19:42:29,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:29,446 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 19:42:29,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222588337] [2020-12-22 19:42:29,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:29,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:42:29,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349843153] [2020-12-22 19:42:29,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:42:29,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:29,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:42:29,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:42:29,449 INFO L87 Difference]: Start difference. First operand 154 states and 213 transitions. Second operand 4 states. [2020-12-22 19:42:29,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:29,573 INFO L93 Difference]: Finished difference Result 165 states and 225 transitions. [2020-12-22 19:42:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:42:29,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-12-22 19:42:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:29,575 INFO L225 Difference]: With dead ends: 165 [2020-12-22 19:42:29,575 INFO L226 Difference]: Without dead ends: 165 [2020-12-22 19:42:29,576 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 19:42:29,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-12-22 19:42:29,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 154. [2020-12-22 19:42:29,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-22 19:42:29,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 212 transitions. [2020-12-22 19:42:29,581 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 212 transitions. Word has length 29 [2020-12-22 19:42:29,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:29,581 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 212 transitions. [2020-12-22 19:42:29,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:42:29,581 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 212 transitions. [2020-12-22 19:42:29,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 19:42:29,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:29,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:29,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 19:42:29,583 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:29,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:29,584 INFO L82 PathProgramCache]: Analyzing trace with hash -2108002969, now seen corresponding path program 1 times [2020-12-22 19:42:29,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:29,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534835218] [2020-12-22 19:42:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:29,624 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 19:42:29,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534835218] [2020-12-22 19:42:29,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:29,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:42:29,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979464404] [2020-12-22 19:42:29,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:29,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:29,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:29,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:29,627 INFO L87 Difference]: Start difference. First operand 154 states and 212 transitions. Second operand 3 states. [2020-12-22 19:42:29,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:29,685 INFO L93 Difference]: Finished difference Result 217 states and 291 transitions. [2020-12-22 19:42:29,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:29,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-22 19:42:29,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:29,687 INFO L225 Difference]: With dead ends: 217 [2020-12-22 19:42:29,687 INFO L226 Difference]: Without dead ends: 217 [2020-12-22 19:42:29,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:29,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-12-22 19:42:29,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 166. [2020-12-22 19:42:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-12-22 19:42:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 230 transitions. [2020-12-22 19:42:29,693 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 230 transitions. Word has length 31 [2020-12-22 19:42:29,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:29,693 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 230 transitions. [2020-12-22 19:42:29,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 230 transitions. [2020-12-22 19:42:29,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 19:42:29,694 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:29,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:29,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 19:42:29,695 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:29,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:29,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1335601405, now seen corresponding path program 1 times [2020-12-22 19:42:29,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:29,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023568639] [2020-12-22 19:42:29,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:29,743 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 19:42:29,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023568639] [2020-12-22 19:42:29,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:29,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:42:29,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176380906] [2020-12-22 19:42:29,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:42:29,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:29,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:42:29,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:42:29,745 INFO L87 Difference]: Start difference. First operand 166 states and 230 transitions. Second operand 5 states. [2020-12-22 19:42:29,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:29,885 INFO L93 Difference]: Finished difference Result 238 states and 316 transitions. [2020-12-22 19:42:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:42:29,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-22 19:42:29,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:29,888 INFO L225 Difference]: With dead ends: 238 [2020-12-22 19:42:29,888 INFO L226 Difference]: Without dead ends: 238 [2020-12-22 19:42:29,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:42:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-12-22 19:42:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 162. [2020-12-22 19:42:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-22 19:42:29,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 221 transitions. [2020-12-22 19:42:29,894 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 221 transitions. Word has length 31 [2020-12-22 19:42:29,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:29,894 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 221 transitions. [2020-12-22 19:42:29,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:42:29,894 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 221 transitions. [2020-12-22 19:42:29,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 19:42:29,895 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:29,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:29,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 19:42:29,896 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:29,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:29,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1219124044, now seen corresponding path program 1 times [2020-12-22 19:42:29,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:29,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372561812] [2020-12-22 19:42:29,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:29,946 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 19:42:29,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372561812] [2020-12-22 19:42:29,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:29,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:42:29,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034308599] [2020-12-22 19:42:29,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:42:29,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:29,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:42:29,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:42:29,949 INFO L87 Difference]: Start difference. First operand 162 states and 221 transitions. Second operand 4 states. [2020-12-22 19:42:30,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:30,042 INFO L93 Difference]: Finished difference Result 173 states and 228 transitions. [2020-12-22 19:42:30,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:42:30,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-12-22 19:42:30,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:30,044 INFO L225 Difference]: With dead ends: 173 [2020-12-22 19:42:30,044 INFO L226 Difference]: Without dead ends: 173 [2020-12-22 19:42:30,045 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 19:42:30,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-12-22 19:42:30,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 162. [2020-12-22 19:42:30,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-22 19:42:30,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 215 transitions. [2020-12-22 19:42:30,049 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 215 transitions. Word has length 31 [2020-12-22 19:42:30,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:30,050 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 215 transitions. [2020-12-22 19:42:30,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:42:30,050 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2020-12-22 19:42:30,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 19:42:30,051 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:30,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:30,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 19:42:30,051 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:30,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:30,052 INFO L82 PathProgramCache]: Analyzing trace with hash 358090674, now seen corresponding path program 1 times [2020-12-22 19:42:30,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:30,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526088736] [2020-12-22 19:42:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:30,107 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 19:42:30,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526088736] [2020-12-22 19:42:30,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:30,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:42:30,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657754200] [2020-12-22 19:42:30,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:42:30,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:30,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:42:30,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:42:30,115 INFO L87 Difference]: Start difference. First operand 162 states and 215 transitions. Second operand 5 states. [2020-12-22 19:42:30,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:30,230 INFO L93 Difference]: Finished difference Result 220 states and 279 transitions. [2020-12-22 19:42:30,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:42:30,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-22 19:42:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:30,238 INFO L225 Difference]: With dead ends: 220 [2020-12-22 19:42:30,238 INFO L226 Difference]: Without dead ends: 220 [2020-12-22 19:42:30,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:42:30,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-12-22 19:42:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 166. [2020-12-22 19:42:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-12-22 19:42:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 218 transitions. [2020-12-22 19:42:30,244 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 218 transitions. Word has length 32 [2020-12-22 19:42:30,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:30,244 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 218 transitions. [2020-12-22 19:42:30,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:42:30,245 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 218 transitions. [2020-12-22 19:42:30,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 19:42:30,245 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:30,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:30,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 19:42:30,246 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:30,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:30,247 INFO L82 PathProgramCache]: Analyzing trace with hash 316074378, now seen corresponding path program 1 times [2020-12-22 19:42:30,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:30,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861157418] [2020-12-22 19:42:30,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:30,283 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 19:42:30,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861157418] [2020-12-22 19:42:30,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:30,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:42:30,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669123700] [2020-12-22 19:42:30,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:30,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:30,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:30,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:30,286 INFO L87 Difference]: Start difference. First operand 166 states and 218 transitions. Second operand 3 states. [2020-12-22 19:42:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:30,338 INFO L93 Difference]: Finished difference Result 182 states and 233 transitions. [2020-12-22 19:42:30,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:30,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-12-22 19:42:30,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:30,341 INFO L225 Difference]: With dead ends: 182 [2020-12-22 19:42:30,341 INFO L226 Difference]: Without dead ends: 181 [2020-12-22 19:42:30,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-12-22 19:42:30,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2020-12-22 19:42:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-22 19:42:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 222 transitions. [2020-12-22 19:42:30,348 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 222 transitions. Word has length 32 [2020-12-22 19:42:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:30,348 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 222 transitions. [2020-12-22 19:42:30,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:30,348 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 222 transitions. [2020-12-22 19:42:30,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:42:30,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:30,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:30,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 19:42:30,350 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:30,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1791632684, now seen corresponding path program 1 times [2020-12-22 19:42:30,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:30,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086855031] [2020-12-22 19:42:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:30,438 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 19:42:30,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086855031] [2020-12-22 19:42:30,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:30,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:42:30,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641478465] [2020-12-22 19:42:30,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:42:30,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:30,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:42:30,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:42:30,440 INFO L87 Difference]: Start difference. First operand 172 states and 222 transitions. Second operand 5 states. [2020-12-22 19:42:30,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:30,534 INFO L93 Difference]: Finished difference Result 205 states and 256 transitions. [2020-12-22 19:42:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:42:30,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-12-22 19:42:30,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:30,536 INFO L225 Difference]: With dead ends: 205 [2020-12-22 19:42:30,536 INFO L226 Difference]: Without dead ends: 205 [2020-12-22 19:42:30,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:42:30,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-12-22 19:42:30,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 163. [2020-12-22 19:42:30,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-22 19:42:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 207 transitions. [2020-12-22 19:42:30,544 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 207 transitions. Word has length 33 [2020-12-22 19:42:30,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:30,546 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 207 transitions. [2020-12-22 19:42:30,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:42:30,546 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 207 transitions. [2020-12-22 19:42:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:42:30,547 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:30,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:30,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 19:42:30,549 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:30,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:30,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1200712151, now seen corresponding path program 1 times [2020-12-22 19:42:30,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:30,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369227842] [2020-12-22 19:42:30,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:30,603 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 19:42:30,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369227842] [2020-12-22 19:42:30,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:30,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:42:30,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806699010] [2020-12-22 19:42:30,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:42:30,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:30,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:42:30,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:30,606 INFO L87 Difference]: Start difference. First operand 163 states and 207 transitions. Second operand 3 states. [2020-12-22 19:42:30,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:30,617 INFO L93 Difference]: Finished difference Result 177 states and 224 transitions. [2020-12-22 19:42:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:42:30,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-22 19:42:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:30,619 INFO L225 Difference]: With dead ends: 177 [2020-12-22 19:42:30,619 INFO L226 Difference]: Without dead ends: 177 [2020-12-22 19:42:30,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:42:30,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-12-22 19:42:30,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 159. [2020-12-22 19:42:30,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-12-22 19:42:30,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 202 transitions. [2020-12-22 19:42:30,624 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 202 transitions. Word has length 33 [2020-12-22 19:42:30,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:30,625 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 202 transitions. [2020-12-22 19:42:30,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:42:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 202 transitions. [2020-12-22 19:42:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:42:30,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:42:30,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:42:30,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 19:42:30,626 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-22 19:42:30,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:42:30,627 INFO L82 PathProgramCache]: Analyzing trace with hash 79667417, now seen corresponding path program 1 times [2020-12-22 19:42:30,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:42:30,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664267133] [2020-12-22 19:42:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:42:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:42:30,666 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 19:42:30,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664267133] [2020-12-22 19:42:30,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:42:30,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:42:30,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847941095] [2020-12-22 19:42:30,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:42:30,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:42:30,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:42:30,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:42:30,668 INFO L87 Difference]: Start difference. First operand 159 states and 202 transitions. Second operand 5 states. [2020-12-22 19:42:30,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:42:30,687 INFO L93 Difference]: Finished difference Result 153 states and 193 transitions. [2020-12-22 19:42:30,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:42:30,688 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-12-22 19:42:30,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:42:30,688 INFO L225 Difference]: With dead ends: 153 [2020-12-22 19:42:30,688 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 19:42:30,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:42:30,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 19:42:30,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 19:42:30,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 19:42:30,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 19:42:30,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-12-22 19:42:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:42:30,690 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 19:42:30,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:42:30,690 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 19:42:30,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 19:42:30,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 19:42:30,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 07:42:30 BoogieIcfgContainer [2020-12-22 19:42:30,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 19:42:30,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 19:42:30,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 19:42:30,698 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 19:42:30,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:42:27" (3/4) ... [2020-12-22 19:42:30,703 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 19:42:30,731 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2020-12-22 19:42:30,733 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2020-12-22 19:42:30,734 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-22 19:42:30,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 19:42:30,928 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c-witness.graphml [2020-12-22 19:42:30,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 19:42:30,931 INFO L168 Benchmark]: Toolchain (without parser) took 5036.79 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 132.4 MB in the beginning and 77.1 MB in the end (delta: 55.3 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:42:30,932 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 158.3 MB. Free memory is still 130.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:42:30,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.51 ms. Allocated memory is still 158.3 MB. Free memory was 132.2 MB in the beginning and 117.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-22 19:42:30,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.45 ms. Allocated memory is still 158.3 MB. Free memory was 117.8 MB in the beginning and 114.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:42:30,933 INFO L168 Benchmark]: Boogie Preprocessor took 51.32 ms. Allocated memory is still 158.3 MB. Free memory was 114.2 MB in the beginning and 111.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:42:30,934 INFO L168 Benchmark]: RCFGBuilder took 1166.25 ms. Allocated memory is still 158.3 MB. Free memory was 111.7 MB in the beginning and 89.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 8.0 GB. [2020-12-22 19:42:30,934 INFO L168 Benchmark]: TraceAbstraction took 2906.45 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 88.7 MB in the beginning and 89.2 MB in the end (delta: -424.4 kB). Peak memory consumption was 32.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:42:30,934 INFO L168 Benchmark]: Witness Printer took 231.07 ms. Allocated memory is still 190.8 MB. Free memory was 89.2 MB in the beginning and 77.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 19:42:30,936 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 158.3 MB. Free memory is still 130.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 599.51 ms. Allocated memory is still 158.3 MB. Free memory was 132.2 MB in the beginning and 117.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 72.45 ms. Allocated memory is still 158.3 MB. Free memory was 117.8 MB in the beginning and 114.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.32 ms. Allocated memory is still 158.3 MB. Free memory was 114.2 MB in the beginning and 111.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1166.25 ms. Allocated memory is still 158.3 MB. Free memory was 111.7 MB in the beginning and 89.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2906.45 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 88.7 MB in the beginning and 89.2 MB in the end (delta: -424.4 kB). Peak memory consumption was 32.1 MB. Max. memory is 8.0 GB. * Witness Printer took 231.07 ms. Allocated memory is still 190.8 MB. Free memory was 89.2 MB in the beginning and 77.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 288]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 174 locations, 17 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3290 SDtfs, 2505 SDslu, 2585 SDs, 0 SdLazy, 713 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=4, 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, 17 MinimizatonAttempts, 346 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 393 ConstructedInterpolants, 0 QuantifiedInterpolants, 24437 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...