/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 10:01:49,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 10:01:49,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 10:01:49,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 10:01:49,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 10:01:49,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 10:01:49,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 10:01:49,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 10:01:49,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 10:01:49,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 10:01:49,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 10:01:49,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 10:01:49,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 10:01:49,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 10:01:49,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 10:01:49,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 10:01:49,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 10:01:49,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 10:01:49,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 10:01:49,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 10:01:49,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 10:01:49,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 10:01:49,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 10:01:49,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 10:01:49,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 10:01:49,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 10:01:49,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 10:01:49,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 10:01:49,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 10:01:49,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 10:01:49,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 10:01:49,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 10:01:49,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 10:01:49,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 10:01:49,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 10:01:49,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 10:01:49,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 10:01:49,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 10:01:49,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 10:01:49,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 10:01:49,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 10:01:49,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 10:01:49,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 10:01:49,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 10:01:49,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 10:01:49,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 10:01:49,652 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 10:01:49,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 10:01:49,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 10:01:49,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 10:01:49,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 10:01:49,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 10:01:49,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 10:01:49,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 10:01:49,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 10:01:49,654 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 10:01:49,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 10:01:49,654 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 10:01:49,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 10:01:49,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 10:01:49,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 10:01:49,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 10:01:49,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 10:01:49,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 10:01:49,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 10:01:49,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 10:01:49,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 10:01:49,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 10:01:49,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 10:01:49,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 10:01:49,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 10:01:49,658 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 10:01:50,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 10:01:50,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 10:01:50,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 10:01:50,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 10:01:50,091 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 10:01:50,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c [2020-10-29 10:01:50,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f7099a5c/3345a288638947c39018cdef744bccdd/FLAGb12ad97fe [2020-10-29 10:01:50,873 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 10:01:50,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/while_infinite_loop_3.c [2020-10-29 10:01:50,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f7099a5c/3345a288638947c39018cdef744bccdd/FLAGb12ad97fe [2020-10-29 10:01:51,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f7099a5c/3345a288638947c39018cdef744bccdd [2020-10-29 10:01:51,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 10:01:51,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 10:01:51,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 10:01:51,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 10:01:51,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 10:01:51,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 10:01:51" (1/1) ... [2020-10-29 10:01:51,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@efdc3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51, skipping insertion in model container [2020-10-29 10:01:51,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 10:01:51" (1/1) ... [2020-10-29 10:01:51,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 10:01:51,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 10:01:51,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 10:01:51,473 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 10:01:51,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 10:01:51,511 INFO L208 MainTranslator]: Completed translation [2020-10-29 10:01:51,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51 WrapperNode [2020-10-29 10:01:51,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 10:01:51,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 10:01:51,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 10:01:51,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 10:01:51,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51" (1/1) ... [2020-10-29 10:01:51,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51" (1/1) ... [2020-10-29 10:01:51,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51" (1/1) ... [2020-10-29 10:01:51,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51" (1/1) ... [2020-10-29 10:01:51,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51" (1/1) ... [2020-10-29 10:01:51,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51" (1/1) ... [2020-10-29 10:01:51,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51" (1/1) ... [2020-10-29 10:01:51,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 10:01:51,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 10:01:51,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 10:01:51,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 10:01:51,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-29 10:01:51,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 10:01:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 10:01:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 10:01:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 10:01:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-29 10:01:51,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 10:01:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 10:01:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 10:01:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 10:01:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 10:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 10:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-29 10:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 10:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 10:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 10:01:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 10:01:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 10:01:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 10:01:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 10:01:52,114 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 10:01:52,114 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-29 10:01:52,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 10:01:52 BoogieIcfgContainer [2020-10-29 10:01:52,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 10:01:52,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 10:01:52,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 10:01:52,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 10:01:52,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 10:01:51" (1/3) ... [2020-10-29 10:01:52,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6a427e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 10:01:52, skipping insertion in model container [2020-10-29 10:01:52,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:01:51" (2/3) ... [2020-10-29 10:01:52,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6a427e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 10:01:52, skipping insertion in model container [2020-10-29 10:01:52,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 10:01:52" (3/3) ... [2020-10-29 10:01:52,133 INFO L111 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3.c [2020-10-29 10:01:52,150 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 10:01:52,156 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 10:01:52,172 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 10:01:52,216 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 10:01:52,216 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 10:01:52,216 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 10:01:52,216 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 10:01:52,217 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 10:01:52,217 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 10:01:52,217 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 10:01:52,217 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 10:01:52,245 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-29 10:01:52,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-29 10:01:52,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:01:52,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:01:52,256 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:01:52,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:01:52,273 INFO L82 PathProgramCache]: Analyzing trace with hash -380414709, now seen corresponding path program 1 times [2020-10-29 10:01:52,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:01:52,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831616471] [2020-10-29 10:01:52,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:01:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:01:52,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:01:52,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:01:52,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 10:01:52,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:01:52,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 10:01:52,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:01:52,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:01:52,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:01:52,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 10:01:52,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:01:52,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 10:01:52,879 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-10-29 10:01:52,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:01:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:01:52,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:01:52,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:01:52,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:01:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:01:52,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 10:01:52,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:01:52,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:01:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:01:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:01:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:01:52,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:01:52,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:01:52,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831616471] [2020-10-29 10:01:52,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:01:52,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 10:01:52,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78907500] [2020-10-29 10:01:52,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-29 10:01:52,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:01:53,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-29 10:01:53,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 10:01:53,017 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2020-10-29 10:01:53,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:01:53,131 INFO L93 Difference]: Finished difference Result 42 states and 59 transitions. [2020-10-29 10:01:53,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 10:01:53,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-29 10:01:53,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:01:53,143 INFO L225 Difference]: With dead ends: 42 [2020-10-29 10:01:53,144 INFO L226 Difference]: Without dead ends: 20 [2020-10-29 10:01:53,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 10:01:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-29 10:01:53,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2020-10-29 10:01:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-29 10:01:53,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-10-29 10:01:53,197 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2020-10-29 10:01:53,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:01:53,197 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-10-29 10:01:53,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-29 10:01:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-10-29 10:01:53,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 10:01:53,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:01:53,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 10:01:53,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 10:01:53,199 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:01:53,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:01:53,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1882206006, now seen corresponding path program 1 times [2020-10-29 10:01:53,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:01:53,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543795450] [2020-10-29 10:01:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:01:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:01:53,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:01:53,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:01:53,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 10:01:53,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:01:53,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-29 10:01:53,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:01:53,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:01:53,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:01:53,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 10:01:53,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 10:01:53,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:01:53,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:01:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:01:53,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:01:53,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:01:53,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:01:53,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:01:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:01:53,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:01:53,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:01:53,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:01:53,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:01:53,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:01:53,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 10:01:53,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 10:01:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:01:53,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:01:53,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:01:53,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:01:53,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:01:53,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 10:01:53,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:01:53,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:01:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 10:01:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:01:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 10:01:53,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:01:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:01:53,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543795450] [2020-10-29 10:01:53,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:01:53,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 10:01:53,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86387399] [2020-10-29 10:01:53,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 10:01:53,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:01:53,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 10:01:53,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-29 10:01:53,555 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 7 states. [2020-10-29 10:01:53,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:01:53,757 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-10-29 10:01:53,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 10:01:53,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-29 10:01:53,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:01:53,759 INFO L225 Difference]: With dead ends: 18 [2020-10-29 10:01:53,759 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 10:01:53,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-29 10:01:53,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 10:01:53,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 10:01:53,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 10:01:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 10:01:53,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-29 10:01:53,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:01:53,762 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 10:01:53,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 10:01:53,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 10:01:53,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 10:01:53,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 10:01:53,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 10:01:53,980 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-29 10:01:53,980 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-29 10:01:53,980 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-29 10:01:53,981 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-29 10:01:53,981 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 10:01:53,981 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~x~0 |old(~x~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-29 10:01:53,981 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 10:01:53,981 INFO L270 CegarLoopResult]: At program point evalENTRY(lines 14 21) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2020-10-29 10:01:53,982 INFO L274 CegarLoopResult]: For program point L16-1(lines 14 21) no Hoare annotation was computed. [2020-10-29 10:01:53,982 INFO L274 CegarLoopResult]: For program point evalEXIT(lines 14 21) no Hoare annotation was computed. [2020-10-29 10:01:53,982 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 10:01:53,982 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~x~0 0) [2020-10-29 10:01:53,982 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 10:01:53,982 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 10:01:53,982 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-29 10:01:53,982 INFO L270 CegarLoopResult]: At program point L29(lines 24 35) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2020-10-29 10:01:53,983 INFO L270 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2020-10-29 10:01:53,983 INFO L270 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2020-10-29 10:01:53,983 INFO L270 CegarLoopResult]: At program point L26-1(lines 26 30) the Hoare annotation is: (not (= |old(~x~0)| 0)) [2020-10-29 10:01:53,983 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2020-10-29 10:01:53,983 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2020-10-29 10:01:53,983 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-10-29 10:01:53,984 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2020-10-29 10:01:53,984 INFO L270 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (or (not (<= 1 |__VERIFIER_assert_#in~cond|)) (not (= ~x~0 0))) [2020-10-29 10:01:53,984 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-10-29 10:01:53,984 INFO L274 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-29 10:01:53,984 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2020-10-29 10:01:53,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 10:01:53 BoogieIcfgContainer [2020-10-29 10:01:53,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 10:01:53,992 INFO L168 Benchmark]: Toolchain (without parser) took 2762.63 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 112.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 8.0 GB. [2020-10-29 10:01:53,993 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 10:01:53,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.45 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 10:01:53,995 INFO L168 Benchmark]: Boogie Preprocessor took 42.50 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-29 10:01:53,996 INFO L168 Benchmark]: RCFGBuilder took 560.56 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 102.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-29 10:01:53,997 INFO L168 Benchmark]: TraceAbstraction took 1868.59 ms. Allocated memory is still 151.0 MB. Free memory was 102.4 MB in the beginning and 112.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. [2020-10-29 10:01:54,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 276.45 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.50 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 560.56 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 102.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1868.59 ms. Allocated memory is still 151.0 MB. Free memory was 102.4 MB in the beginning and 112.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 23 SDslu, 17 SDs, 0 SdLazy, 28 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 17 PreInvPairs, 20 NumberOfFragments, 85 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 184 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...