/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:59:27,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:59:27,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:59:27,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:59:27,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:59:27,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:59:27,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:59:27,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:59:27,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:59:27,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:59:27,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:59:27,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:59:27,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:59:27,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:59:27,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:59:27,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:59:27,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:59:27,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:59:27,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:59:27,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:59:27,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:59:27,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:59:27,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:59:27,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:59:27,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:59:27,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:59:27,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:59:27,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:59:27,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:59:27,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:59:27,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:59:27,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:59:27,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:59:27,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:59:27,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:59:27,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:59:27,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:59:27,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:59:27,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:59:27,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:59:27,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:59:27,578 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 17:59:27,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:59:27,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:59:27,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:59:27,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:59:27,627 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:59:27,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:59:27,627 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:59:27,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:59:27,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:59:27,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:59:27,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:59:27,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:59:27,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:59:27,629 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:59:27,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:59:27,630 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:59:27,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:59:27,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:59:27,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:59:27,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:59:27,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:59:27,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:59:27,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:59:27,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:59:27,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:59:27,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:59:27,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:59:27,632 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:59:27,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:59:28,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:59:28,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:59:28,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:59:28,121 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:59:28,122 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:59:28,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2021-02-19 17:59:28,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a02716fb/867dab3f48dc4d7b91882ccc37e44b00/FLAGb8c50cedc [2021-02-19 17:59:28,821 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:59:28,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2021-02-19 17:59:28,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a02716fb/867dab3f48dc4d7b91882ccc37e44b00/FLAGb8c50cedc [2021-02-19 17:59:29,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a02716fb/867dab3f48dc4d7b91882ccc37e44b00 [2021-02-19 17:59:29,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:59:29,191 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:59:29,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:59:29,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:59:29,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:59:29,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:59:29" (1/1) ... [2021-02-19 17:59:29,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f01eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29, skipping insertion in model container [2021-02-19 17:59:29,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:59:29" (1/1) ... [2021-02-19 17:59:29,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:59:29,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:59:29,391 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i[825,838] [2021-02-19 17:59:29,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:59:29,419 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:59:29,433 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i[825,838] [2021-02-19 17:59:29,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:59:29,456 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:59:29,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29 WrapperNode [2021-02-19 17:59:29,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:59:29,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:59:29,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:59:29,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:59:29,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29" (1/1) ... [2021-02-19 17:59:29,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29" (1/1) ... [2021-02-19 17:59:29,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29" (1/1) ... [2021-02-19 17:59:29,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29" (1/1) ... [2021-02-19 17:59:29,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29" (1/1) ... [2021-02-19 17:59:29,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29" (1/1) ... [2021-02-19 17:59:29,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29" (1/1) ... [2021-02-19 17:59:29,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:59:29,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:59:29,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:59:29,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:59:29,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29" (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 [2021-02-19 17:59:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:59:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:59:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:59:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-19 17:59:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2021-02-19 17:59:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:59:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:59:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:59:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-19 17:59:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-19 17:59:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:59:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:59:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-19 17:59:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2021-02-19 17:59:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:59:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:59:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:59:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:59:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:59:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:59:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:59:29,977 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:59:29,978 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-19 17:59:29,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:59:29 BoogieIcfgContainer [2021-02-19 17:59:29,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:59:29,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:59:29,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:59:29,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:59:29,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:59:29" (1/3) ... [2021-02-19 17:59:29,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d4e9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:59:29, skipping insertion in model container [2021-02-19 17:59:29,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:29" (2/3) ... [2021-02-19 17:59:29,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d4e9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:59:29, skipping insertion in model container [2021-02-19 17:59:29,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:59:29" (3/3) ... [2021-02-19 17:59:29,992 INFO L111 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2021-02-19 17:59:29,999 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:59:30,004 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:59:30,023 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:59:30,050 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:59:30,051 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:59:30,051 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:59:30,051 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:59:30,051 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:59:30,051 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:59:30,051 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:59:30,052 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:59:30,069 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2021-02-19 17:59:30,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-02-19 17:59:30,075 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:59:30,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:59:30,076 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:59:30,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:59:30,082 INFO L82 PathProgramCache]: Analyzing trace with hash 49640583, now seen corresponding path program 1 times [2021-02-19 17:59:30,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:59:30,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718469947] [2021-02-19 17:59:30,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:59:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:59:30,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:30,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:30,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:30,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-19 17:59:30,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:30,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-19 17:59:30,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:30,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-19 17:59:30,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:30,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:30,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:30,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:30,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:30,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:30,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:59:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:59:30,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:30,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:30,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:59:30,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718469947] [2021-02-19 17:59:30,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:59:30,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:59:30,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914282852] [2021-02-19 17:59:30,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:59:30,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:59:30,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:59:30,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:59:30,561 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 8 states. [2021-02-19 17:59:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:59:31,059 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-02-19 17:59:31,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 17:59:31,062 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2021-02-19 17:59:31,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:59:31,085 INFO L225 Difference]: With dead ends: 55 [2021-02-19 17:59:31,087 INFO L226 Difference]: Without dead ends: 26 [2021-02-19 17:59:31,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-02-19 17:59:31,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-02-19 17:59:31,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-02-19 17:59:31,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-02-19 17:59:31,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-02-19 17:59:31,203 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2021-02-19 17:59:31,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:59:31,204 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-02-19 17:59:31,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:59:31,205 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-02-19 17:59:31,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-02-19 17:59:31,206 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:59:31,206 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:59:31,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:59:31,207 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:59:31,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:59:31,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1781648093, now seen corresponding path program 1 times [2021-02-19 17:59:31,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:59:31,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899994841] [2021-02-19 17:59:31,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:59:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:59:31,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-19 17:59:31,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-19 17:59:31,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-19 17:59:31,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:59:31,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:31,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:31,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:59:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:59:31,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:59:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:59:31,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:59:31,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899994841] [2021-02-19 17:59:31,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346515794] [2021-02-19 17:59:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 17:59:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:59:31,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 26 conjunts are in the unsatisfiable core [2021-02-19 17:59:31,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 17:59:31,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 17:59:31,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-19 17:59:31,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 17:59:31,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-19 17:59:31,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-19 17:59:31,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-19 17:59:31,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 17:59:31,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-19 17:59:31,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-19 17:59:31,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-19 17:59:31,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 17:59:31,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:59:31,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-19 17:59:31,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 17:59:31,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:59:31,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-19 17:59:31,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-19 17:59:31,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:59:31,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:59:31,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:59:31,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:59:31,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 17:59:31,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:31,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:31,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:31,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:31,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:31,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:59:31,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-19 17:59:31,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-19 17:59:31,751 WARN L141 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-02-19 17:59:31,752 WARN L147 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size 9 [2021-02-19 17:59:31,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:59:31,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 17:59:31,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-19 17:59:31,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-19 17:59:31,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 17:59:31,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-19 17:59:31,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-19 17:59:31,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-19 17:59:31,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:59:31,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:59:31,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:59:31,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:59:31,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:59:31,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 17:59:31,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-19 17:59:31,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-19 17:59:31,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 17:59:31,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-19 17:59:31,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-19 17:59:31,791 WARN L141 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size [2021-02-19 17:59:31,793 WARN L147 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size 8 [2021-02-19 17:59:31,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:59:31,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:59:31,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 17:59:31,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:59:31,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:59:31,823 WARN L141 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-02-19 17:59:31,823 WARN L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-02-19 17:59:31,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:59:31,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:59:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:59:31,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 17:59:31,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2021-02-19 17:59:31,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160613401] [2021-02-19 17:59:31,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-19 17:59:31,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:59:31,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-19 17:59:31,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-02-19 17:59:31,832 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 15 states. [2021-02-19 17:59:32,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:59:32,284 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-02-19 17:59:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:59:32,285 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 21 [2021-02-19 17:59:32,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:59:32,288 INFO L225 Difference]: With dead ends: 34 [2021-02-19 17:59:32,288 INFO L226 Difference]: Without dead ends: 32 [2021-02-19 17:59:32,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-02-19 17:59:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-02-19 17:59:32,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-02-19 17:59:32,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-02-19 17:59:32,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-02-19 17:59:32,300 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2021-02-19 17:59:32,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:59:32,300 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2021-02-19 17:59:32,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-19 17:59:32,300 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-02-19 17:59:32,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 17:59:32,301 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:59:32,302 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:59:32,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-02-19 17:59:32,516 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:59:32,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:59:32,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1581946061, now seen corresponding path program 2 times [2021-02-19 17:59:32,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:59:32,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304994235] [2021-02-19 17:59:32,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:59:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:59:32,570 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:59:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:59:32,618 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:59:32,665 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:59:32,666 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:59:32,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:59:32,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:59:32 BoogieIcfgContainer [2021-02-19 17:59:32,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:59:32,732 INFO L168 Benchmark]: Toolchain (without parser) took 3553.41 ms. Allocated memory was 152.0 MB in the beginning and 202.4 MB in the end (delta: 50.3 MB). Free memory was 127.1 MB in the beginning and 121.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 56.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:59:32,732 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:59:32,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.65 ms. Allocated memory is still 152.0 MB. Free memory was 126.0 MB in the beginning and 116.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:59:32,733 INFO L168 Benchmark]: Boogie Preprocessor took 44.13 ms. Allocated memory is still 152.0 MB. Free memory was 116.5 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:59:32,733 INFO L168 Benchmark]: RCFGBuilder took 479.85 ms. Allocated memory is still 152.0 MB. Free memory was 114.9 MB in the beginning and 133.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-19 17:59:32,734 INFO L168 Benchmark]: TraceAbstraction took 2745.51 ms. Allocated memory was 152.0 MB in the beginning and 202.4 MB in the end (delta: 50.3 MB). Free memory was 133.2 MB in the beginning and 121.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 62.6 MB. Max. memory is 8.0 GB. [2021-02-19 17:59:32,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 264.65 ms. Allocated memory is still 152.0 MB. Free memory was 126.0 MB in the beginning and 116.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.13 ms. Allocated memory is still 152.0 MB. Free memory was 116.5 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 479.85 ms. Allocated memory is still 152.0 MB. Free memory was 114.9 MB in the beginning and 133.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2745.51 ms. Allocated memory was 152.0 MB in the beginning and 202.4 MB in the end (delta: 50.3 MB). Free memory was 133.2 MB in the beginning and 121.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 62.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] Char *tmp; VAL [\old(tmp)=52, \old(tmp)=56, tmp={0:0}] [L40] Char pathbuf[1 +1]; [L42] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L44] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 VAL [\old(tmp)=0, \old(tmp)=0, bound={3:28}, pathbuf={3:0}, tmp={3:4}] [L46] CALL glob2 (pathbuf, bound) VAL [\old(tmp)=0, \old(tmp)=0, pathbuf={3:0}, pathlim={3:28}, tmp={3:4}] [L27] Char *p; [L29] p = pathbuf VAL [\old(tmp)=0, \old(tmp)=0, p={3:0}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={3:0}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L31] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={3:4}] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={3:4}] [L31] RET __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, p={3:0}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L32] *p = 1 VAL [\old(tmp)=0, \old(tmp)=0, p={3:0}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] p++ VAL [\old(tmp)=0, \old(tmp)=0, p={3:4}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={3:4}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L31] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={3:4}] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={3:4}] [L31] RET __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, p={3:4}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L32] *p = 1 VAL [\old(tmp)=0, \old(tmp)=0, p={3:4}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] p++ VAL [\old(tmp)=0, \old(tmp)=0, p={3:8}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={3:8}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L31] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, tmp={3:4}] [L15] COND TRUE !(cond) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={3:4}] [L16] reach_error() VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={3:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 78 SDslu, 93 SDs, 0 SdLazy, 250 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 5352 SizeOfPredicates, 7 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 3/8 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 incorrect! Received shutdown request...