/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/memory-alloca/c.03-alloca-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 17:09:55,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 17:09:55,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 17:09:55,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 17:09:55,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 17:09:55,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 17:09:55,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 17:09:55,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 17:09:55,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 17:09:55,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 17:09:55,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 17:09:55,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 17:09:55,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 17:09:55,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 17:09:55,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 17:09:55,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 17:09:55,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 17:09:55,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 17:09:55,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 17:09:55,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 17:09:55,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 17:09:55,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 17:09:55,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 17:09:55,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 17:09:55,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 17:09:55,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 17:09:55,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 17:09:55,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 17:09:55,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 17:09:55,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 17:09:55,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 17:09:55,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 17:09:55,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 17:09:55,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 17:09:55,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 17:09:55,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 17:09:55,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-23 17:09:55,310 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 17:09:55,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 17:09:55,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 17:09:55,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 17:09:55,317 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 17:09:55,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 17:09:55,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 17:09:55,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 17:09:55,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 17:09:55,318 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 17:09:55,318 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 17:09:55,318 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-23 17:09:55,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 17:09:55,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 17:09:55,333 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 17:09:55,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 17:09:55,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 17:09:55,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 17:09:55,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:09:55,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 17:09:55,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 17:09:55,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 17:09:55,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 17:09:55,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 17:09:55,341 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 17:09:55,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 17:09:55,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 17:09:55,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 17:09:55,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 17:09:55,833 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 17:09:55,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-12-23 17:09:55,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/06edcc61f/a4ea393f66bc48e5b8a3b2d0e8081ff6/FLAGccf6c21bf [2020-12-23 17:09:56,614 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 17:09:56,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-12-23 17:09:56,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/06edcc61f/a4ea393f66bc48e5b8a3b2d0e8081ff6/FLAGccf6c21bf [2020-12-23 17:09:56,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/06edcc61f/a4ea393f66bc48e5b8a3b2d0e8081ff6 [2020-12-23 17:09:56,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 17:09:56,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 17:09:56,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 17:09:56,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 17:09:56,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 17:09:56,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:09:56" (1/1) ... [2020-12-23 17:09:56,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7b0b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:56, skipping insertion in model container [2020-12-23 17:09:56,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:09:56" (1/1) ... [2020-12-23 17:09:56,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 17:09:56,961 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: IdentifierExpression[~x_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~y_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~z_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~c~0,] left hand side expression in assignment: address: IdentifierExpression[~x_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~z_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~c~0,] [2020-12-23 17:09:57,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:09:57,316 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: IdentifierExpression[~x_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~y_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~z_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~c~0,] left hand side expression in assignment: address: IdentifierExpression[~x_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~z_ref~0,] left hand side expression in assignment: address: IdentifierExpression[~c~0,] [2020-12-23 17:09:57,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:09:57,428 INFO L208 MainTranslator]: Completed translation [2020-12-23 17:09:57,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57 WrapperNode [2020-12-23 17:09:57,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 17:09:57,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 17:09:57,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 17:09:57,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 17:09:57,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... [2020-12-23 17:09:57,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... [2020-12-23 17:09:57,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 17:09:57,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 17:09:57,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 17:09:57,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 17:09:57,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... [2020-12-23 17:09:57,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... [2020-12-23 17:09:57,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... [2020-12-23 17:09:57,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... [2020-12-23 17:09:57,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... [2020-12-23 17:09:57,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... [2020-12-23 17:09:57,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... [2020-12-23 17:09:57,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 17:09:57,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 17:09:57,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 17:09:57,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 17:09:57,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 17:09:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 17:09:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 17:09:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 17:09:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 17:09:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 17:09:57,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 17:09:58,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 17:09:58,166 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-23 17:09:58,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:09:58 BoogieIcfgContainer [2020-12-23 17:09:58,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 17:09:58,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 17:09:58,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 17:09:58,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 17:09:58,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:09:56" (1/3) ... [2020-12-23 17:09:58,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d659af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:09:58, skipping insertion in model container [2020-12-23 17:09:58,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:09:57" (2/3) ... [2020-12-23 17:09:58,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d659af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:09:58, skipping insertion in model container [2020-12-23 17:09:58,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:09:58" (3/3) ... [2020-12-23 17:09:58,182 INFO L111 eAbstractionObserver]: Analyzing ICFG c.03-alloca-2.i [2020-12-23 17:09:58,192 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 17:09:58,199 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2020-12-23 17:09:58,257 INFO L253 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2020-12-23 17:09:58,314 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 17:09:58,314 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 17:09:58,315 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 17:09:58,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 17:09:58,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 17:09:58,315 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 17:09:58,315 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 17:09:58,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 17:09:58,347 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-12-23 17:09:58,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 17:09:58,364 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:58,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 17:09:58,366 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:58,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:58,375 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-23 17:09:58,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:58,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929673702] [2020-12-23 17:09:58,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:58,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929673702] [2020-12-23 17:09:58,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:58,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:58,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611556567] [2020-12-23 17:09:58,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:58,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:58,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:58,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:58,802 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 3 states. [2020-12-23 17:09:58,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:58,922 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2020-12-23 17:09:58,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:58,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 17:09:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:58,935 INFO L225 Difference]: With dead ends: 53 [2020-12-23 17:09:58,936 INFO L226 Difference]: Without dead ends: 51 [2020-12-23 17:09:58,937 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 [2020-12-23 17:09:58,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-23 17:09:58,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-12-23 17:09:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-23 17:09:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-12-23 17:09:58,981 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 3 [2020-12-23 17:09:58,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:58,981 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-12-23 17:09:58,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:58,982 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-12-23 17:09:58,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 17:09:58,982 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:58,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 17:09:58,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 17:09:59,005 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:59,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:59,009 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-23 17:09:59,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:59,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246825376] [2020-12-23 17:09:59,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:59,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:59,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246825376] [2020-12-23 17:09:59,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:59,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:59,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118051522] [2020-12-23 17:09:59,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:59,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:59,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:59,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:59,083 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 3 states. [2020-12-23 17:09:59,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:59,177 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-12-23 17:09:59,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:59,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 17:09:59,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:59,180 INFO L225 Difference]: With dead ends: 46 [2020-12-23 17:09:59,180 INFO L226 Difference]: Without dead ends: 46 [2020-12-23 17:09:59,182 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 [2020-12-23 17:09:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-23 17:09:59,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-12-23 17:09:59,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-23 17:09:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-12-23 17:09:59,193 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 3 [2020-12-23 17:09:59,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:59,193 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-12-23 17:09:59,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:59,193 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-12-23 17:09:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 17:09:59,194 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:59,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 17:09:59,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 17:09:59,196 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:59,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:59,197 INFO L82 PathProgramCache]: Analyzing trace with hash 925543, now seen corresponding path program 1 times [2020-12-23 17:09:59,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:59,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572478473] [2020-12-23 17:09:59,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:59,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572478473] [2020-12-23 17:09:59,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:59,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:59,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829490919] [2020-12-23 17:09:59,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:59,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:59,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:59,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:59,267 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 3 states. [2020-12-23 17:09:59,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:59,318 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-12-23 17:09:59,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:59,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-23 17:09:59,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:59,319 INFO L225 Difference]: With dead ends: 44 [2020-12-23 17:09:59,319 INFO L226 Difference]: Without dead ends: 44 [2020-12-23 17:09:59,320 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 [2020-12-23 17:09:59,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-23 17:09:59,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-23 17:09:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-23 17:09:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-12-23 17:09:59,326 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 4 [2020-12-23 17:09:59,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:59,326 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-12-23 17:09:59,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:59,327 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-12-23 17:09:59,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 17:09:59,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:59,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 17:09:59,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 17:09:59,328 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:59,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:59,332 INFO L82 PathProgramCache]: Analyzing trace with hash 925544, now seen corresponding path program 1 times [2020-12-23 17:09:59,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:59,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221803348] [2020-12-23 17:09:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:59,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221803348] [2020-12-23 17:09:59,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:59,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:59,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288450595] [2020-12-23 17:09:59,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:59,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:59,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:59,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:59,394 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 3 states. [2020-12-23 17:09:59,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:59,433 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-12-23 17:09:59,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:59,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-23 17:09:59,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:59,434 INFO L225 Difference]: With dead ends: 42 [2020-12-23 17:09:59,435 INFO L226 Difference]: Without dead ends: 42 [2020-12-23 17:09:59,435 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 [2020-12-23 17:09:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-23 17:09:59,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-23 17:09:59,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-23 17:09:59,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-12-23 17:09:59,440 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 4 [2020-12-23 17:09:59,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:59,440 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-12-23 17:09:59,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:59,441 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-12-23 17:09:59,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-23 17:09:59,441 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:59,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-23 17:09:59,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 17:09:59,442 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:59,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:59,443 INFO L82 PathProgramCache]: Analyzing trace with hash 28691812, now seen corresponding path program 1 times [2020-12-23 17:09:59,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:59,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914901417] [2020-12-23 17:09:59,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:59,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914901417] [2020-12-23 17:09:59,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:59,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:59,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451181663] [2020-12-23 17:09:59,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:59,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:59,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:59,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:59,506 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 3 states. [2020-12-23 17:09:59,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:59,574 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-12-23 17:09:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:59,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-23 17:09:59,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:59,578 INFO L225 Difference]: With dead ends: 38 [2020-12-23 17:09:59,579 INFO L226 Difference]: Without dead ends: 38 [2020-12-23 17:09:59,579 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 [2020-12-23 17:09:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-23 17:09:59,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-23 17:09:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-23 17:09:59,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-12-23 17:09:59,588 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 5 [2020-12-23 17:09:59,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:59,589 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-12-23 17:09:59,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:59,589 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-12-23 17:09:59,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-23 17:09:59,590 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:59,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-23 17:09:59,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 17:09:59,591 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:59,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:59,592 INFO L82 PathProgramCache]: Analyzing trace with hash 28691813, now seen corresponding path program 1 times [2020-12-23 17:09:59,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:59,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777810403] [2020-12-23 17:09:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:59,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:59,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777810403] [2020-12-23 17:09:59,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:59,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:59,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023211923] [2020-12-23 17:09:59,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:59,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:59,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:59,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:59,671 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 3 states. [2020-12-23 17:09:59,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:59,720 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-12-23 17:09:59,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:59,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-23 17:09:59,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:59,725 INFO L225 Difference]: With dead ends: 34 [2020-12-23 17:09:59,726 INFO L226 Difference]: Without dead ends: 34 [2020-12-23 17:09:59,726 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 [2020-12-23 17:09:59,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-23 17:09:59,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-23 17:09:59,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-23 17:09:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-12-23 17:09:59,734 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 5 [2020-12-23 17:09:59,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:59,735 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-12-23 17:09:59,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:59,739 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-12-23 17:09:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 17:09:59,740 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:59,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 17:09:59,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 17:09:59,740 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:59,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:59,743 INFO L82 PathProgramCache]: Analyzing trace with hash 889446154, now seen corresponding path program 1 times [2020-12-23 17:09:59,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:59,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880811255] [2020-12-23 17:09:59,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:59,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880811255] [2020-12-23 17:09:59,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:59,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:59,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916417348] [2020-12-23 17:09:59,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:59,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:59,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:59,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:59,817 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 3 states. [2020-12-23 17:09:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:59,855 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-12-23 17:09:59,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:59,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-23 17:09:59,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:59,858 INFO L225 Difference]: With dead ends: 30 [2020-12-23 17:09:59,858 INFO L226 Difference]: Without dead ends: 30 [2020-12-23 17:09:59,859 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 [2020-12-23 17:09:59,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-23 17:09:59,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-23 17:09:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-23 17:09:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-12-23 17:09:59,875 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 6 [2020-12-23 17:09:59,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:59,875 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-12-23 17:09:59,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:59,875 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-12-23 17:09:59,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 17:09:59,876 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:59,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 17:09:59,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 17:09:59,877 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:59,879 INFO L82 PathProgramCache]: Analyzing trace with hash 889446155, now seen corresponding path program 1 times [2020-12-23 17:09:59,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:59,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286207098] [2020-12-23 17:09:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:09:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:09:59,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:09:59,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286207098] [2020-12-23 17:09:59,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:09:59,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:09:59,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903124356] [2020-12-23 17:09:59,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:09:59,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:09:59,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:09:59,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:09:59,933 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 3 states. [2020-12-23 17:09:59,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:09:59,959 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-12-23 17:09:59,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:09:59,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-23 17:09:59,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:09:59,960 INFO L225 Difference]: With dead ends: 26 [2020-12-23 17:09:59,961 INFO L226 Difference]: Without dead ends: 26 [2020-12-23 17:09:59,961 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 [2020-12-23 17:09:59,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-23 17:09:59,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-23 17:09:59,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-23 17:09:59,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-12-23 17:09:59,964 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 6 [2020-12-23 17:09:59,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:09:59,964 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-12-23 17:09:59,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:09:59,964 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-23 17:09:59,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 17:09:59,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:09:59,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:09:59,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 17:09:59,966 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 17:09:59,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:09:59,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1831182508, now seen corresponding path program 1 times [2020-12-23 17:09:59,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:09:59,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56319698] [2020-12-23 17:09:59,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:10:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:10:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:10:00,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56319698] [2020-12-23 17:10:00,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:10:00,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:10:00,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581873925] [2020-12-23 17:10:00,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:10:00,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:10:00,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:10:00,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:10:00,174 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 4 states. [2020-12-23 17:10:00,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:10:00,220 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-12-23 17:10:00,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:10:00,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-23 17:10:00,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:10:00,221 INFO L225 Difference]: With dead ends: 25 [2020-12-23 17:10:00,221 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 17:10:00,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:10:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 17:10:00,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 17:10:00,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 17:10:00,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 17:10:00,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-23 17:10:00,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:10:00,223 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 17:10:00,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:10:00,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 17:10:00,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 17:10:00,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 17:10:00,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 05:10:00 BoogieIcfgContainer [2020-12-23 17:10:00,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 17:10:00,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 17:10:00,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 17:10:00,231 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 17:10:00,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:09:58" (3/4) ... [2020-12-23 17:10:00,236 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 17:10:00,250 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-23 17:10:00,251 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 17:10:00,251 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-23 17:10:00,310 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/memory-alloca/c.03-alloca-2.i-witness.graphml [2020-12-23 17:10:00,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 17:10:00,313 INFO L168 Benchmark]: Toolchain (without parser) took 3408.14 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 113.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. [2020-12-23 17:10:00,313 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 127.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 17:10:00,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.80 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 104.9 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-23 17:10:00,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.70 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 103.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 17:10:00,315 INFO L168 Benchmark]: Boogie Preprocessor took 60.01 ms. Allocated memory is still 151.0 MB. Free memory was 102.8 MB in the beginning and 101.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 17:10:00,315 INFO L168 Benchmark]: RCFGBuilder took 574.62 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 78.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-23 17:10:00,316 INFO L168 Benchmark]: TraceAbstraction took 2058.28 ms. Allocated memory is still 151.0 MB. Free memory was 77.4 MB in the beginning and 116.9 MB in the end (delta: -39.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 17:10:00,316 INFO L168 Benchmark]: Witness Printer took 79.80 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 113.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 17:10:00,319 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 151.0 MB. Free memory is still 127.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 522.80 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 104.9 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 98.70 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 103.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 60.01 ms. Allocated memory is still 151.0 MB. Free memory was 102.8 MB in the beginning and 101.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 574.62 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 78.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2058.28 ms. Allocated memory is still 151.0 MB. Free memory was 77.4 MB in the beginning and 116.9 MB in the end (delta: -39.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 79.80 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 113.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 58 locations, 31 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 148 SDtfs, 293 SDslu, 17 SDs, 0 SdLazy, 231 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 4992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...